Traumatic Stress
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Running head: Traumatic Stress
Cultural Factors in Traumatic Stress
Peter D. Yeomans and Evan M. Forman
Drexel University
Author’s Note
Peter D. Yeomans, Department of Psychology, Drexel University; Evan M. Forman,
Department of Psychology, Drexel University.
Correspondence concerning this article should be addressed to Peter Yeomans, San
Francisco VA Medical Center, Mental Health Division (116B), 4150 Clement St., San
Francisco, CA 94121. Email: pdy23@drexel.edu
Word Count: 7,118 (text); 2,399 (references)
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Introduction
This chapter begins with an outline of the relevance and need for a better elucidation
of the prevalence of PTSD in diverse settings and its utility as a way of conceptualizing
traumatic stress. Even in domestic settings, PTSD as a construct is not without controversy
and a brief consideration of its critiques will be included. One of the most central critiques
lies in the debate as to the degree to which PTSD is a meaningful and useful construct in the
context of cross-cultural psychological research and clinical treatment. We reference
components of this debate and conclude with some specific recommendations for research
and treatment.
Posttraumatic Stress Disorder
Posttraumatic Stress Disorder (PTSD) as a diagnosis was first recognized in the
third edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-III)
(APA, 1980). The PTSD diagnosis includes a prerequisite traumatic event, three subsets of
symptom types, a requisite duration of symptoms beyond one month after the associated
event, and a significant decrease in functioning. The intrusion subcategory includes dreams
or flashbacks reminiscent of the event, intrusive thoughts about the event, and emotional
distress and physiological reactivity to cues associated with the event. The
avoidance/numbing subcategory includes the avoidance of people and places that are
reminders of the event, the inability to remember all the details of the event, feelings of
detachment from others, a restricted range of affect, and a sense of a foreshortened future.
The hyperarousal subcategory includes an exaggerated startle response, difficulty
concentrating or falling asleep, outbursts of anger, and hypervigilance.
Since its inception PTSD has been embroiled in debate over multiple issues.
Major controversies about the diagnosis include the political climate in which it was
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conceived (Herbert & Forman, 2005; McNally, 2004), the recent broadening of the
3
definition of the traumatic event that is required to meet a diagnosis for PTSD, and that
event’s questionable association with symptom manifestation. For instance Mol et al.
(2005) found that PTSD symptoms were as commonly associated with life events such
as an illness or problems at work as they were with events that meet Criterion A. The
construct has been a source of even greater controversy in its implication that traumatic
memories can be actively repressed and then made inaccessible to memory (Bloom,
1997), a notion that is not supported by research on memory (Lynn, Knox, Fassler,
Lillienfeld, & Loftus, 2004; McNally, 2004). All of these controversies warrant
substantial caution in our application of the PTSD construct cross-culturally. For
instance, Terheggen, Stroebe, and Kleber (2001) reported that for Tibetans the most
traumatic event was the witnessing of the destruction of religious signs. However such
events do not typically find themselves on a traumatic event checklist.
Importance of Understanding Cultural Factors
The need to identify how people respond to traumatic events has become a central issue
in both international psychological and humanitarian domains. Medicine and mental health
professionals find themselves with an increasingly diverse patient pool that may include
recent refugees, asylum applicants, and immigrants from regions of the world that have
experienced profound disruption, most often in the form of a war or a natural disaster. As
an index of the vast numbers of people who have experienced traumatic events, there have
been 190 armed conflicts between the end of the Second World War (WWII) and 1990
resulting in 310,000 deaths and many times more non-fatal casualties (WHO, 2002). In
contrast to WWII, most of those killed and injured have been civilians (Zwi, 1991). At the
close of 2006, there were over 12.8 million Internally Displaced Persons, 9.8 million
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refugees, and an additional 10.3 million “people of concern” as designate by the United
Nations (UNHCR, 2006).
As the West has expanded its role in the provision of all types of resources to
impoverished countries and displaced populations, such aid has increasingly included
treatment for trauma-related psychological problems. These treatments have been
developed in nations of relatively similar culture (United States, Europe, Australia,
Israel) and are thus primarily based on industrialized cultures’ conceptualizations of
trauma and its sequelae, in particular the notion that PTSD is an expected, or at least
likely, psychological reaction to extremely stressful events. The vast majority of the
treatment methods and models for traumatic stress have been derived from studies of
samples from industrialized countries and, yet they are increasingly applied to diverse
cultural populations. The validity of this conceptualization and even validity of the
diagnosis is still in debate as applied to industrialized cultural populations, and the
degree to which PTSD is universally applicable is even less certain. The reliability and
validity of our measurement of PTSD, what diverse groups consider traumatic, how they
respond to trauma, and the type of treatment from which they will most benefit, needs
continued attention (Marsella, Friedman, & Spain, 1996).
The debate over the appropriate application of these models in culturally
different settings is born out of a larger effort to assist individuals and communities in
their recovery from devastating impact of human-caused or natural events. Successful
conceptualization of a singular model facilitates research and treatment development, yet
oversimplification of the model can cause additional problems. For instance, Kleinman
(1977) warns us against the “category fallacy” in which we presume that mental health
constructs will translate and be evident in other cultures. There are concerns that the
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PTSD label implies vulnerability within those who may in fact show more resilience
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(Frey, 2001). Other writers caution that the use of the PTSD diagnosis draws attention
away from the political and social causes of an event and distracts us from the true
causes of traumatic stress: political violence, economic injustice, and issues of security
(Nader, Dubrow, & Stamm, 1999; Wessells, 1999). Biomedical conceptualizations and
treatment of distress potentially reduce the critical consideration of economic and
political forces that contribute to such distress (Bracken et al., 1995).
Studies of prevalence
To understand the cultural factors that influence the presentation of traumatic
stress, we must first investigate basic prevalence of PTSD in different settings. Evidence
of prevalence demonstrates that the construct can be found in that setting, but does not
tell us whether it is the most valid representation of traumatic stress. Conclusions about
prevalence are often based on the questionable assumption of the validity of assessment
techniques and measures. Nonetheless, it is a starting point for understanding how
traumatic stress is manifest among different people.
In cross-cultural research, methodology significantly shapes the nature of
findings. For instance, an etic investigation imposes preestablished constructs and
methods from a cultural perspective foreign to the sample under study, whereas an emic
approach aims to elicit more qualitative information from the subject by using openended questions on the principle that responses should not be forced to fit into
preconceived foreign models. Both styles of research can contribute to appreciating
cultural manifestation of traumatic stress and both have their limitations. An emic
approach has the advantage of collecting indigenous models and descriptors of the
experience of traumatic stress. Responses are not limited to those of a predetermined
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questionnaire and there is opportunity to fully assess the breadth of possible
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manifestations of distress. The main disadvantage lies in the likelihood of overlooking
symptoms that are considered too private or just not worth mentioning. In addition,
qualitative data offers limited opportunities for statistical analysis. Questionnaire-based
(etic) methods, probe for expected signs and symptoms, and also yield quantitative data.
Studies measuring prevalence can be divided between samples of refugees
having lived in or recently arrived in industrialized nations, and samples of nationals
living in either their country of origin or having been displaced to another culturally
similar country (i.e., Rwandan refugees in Burundi). This distinction is important in that
it potentially reflects different degrees of acculturation which may influence symptom
presentation. It could be argued that as length of stay in industrialized countries
increases, immigrants may be relatively more acculturated and therefore perhaps more
similar to the PTSD model in terms of how they present. This distinction also may
indicate the extent of daily living stressors associated with refugee status that has been
shown to contribute to the maintenance or exacerbation of traumatic stress.
Reported prevalence rates are predictably as diverse as the different samples in
which they were solicited. For instance reports of PTSD after natural disaster have
ranged from 1.5% to 67% (Wang et al., 2000), and after war or civil unrest from Sierra
Leone as high as 99% (Raymond, 2000). Due to the diversity of samples and their
concomitant traumatic histories, it is difficult to discern whether such differences are the
result of methodological and sampling differences or the studying of a disorder with
significant cultural variability. A comparison of traumatic stress reactions between two
different cultural groups does not permit confident attribution of these differences to
differences in cultural identity unless other factors are controlled for (SES, trauma
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exposure, urban versus rural). Nonetheless, a brief summary of the diverse findings is
provided below.
Recent immigrants to the industrialized world.
The following studies primarily used etic approaches such as standardized selfreport measures, though they were sometimes read aloud to the participants. Carlson and
Rosser-Hogan (1994) sampled Cambodian refugees who had lived in refugee camps in
Thailand and had emigrated from Thai refugee camps to the U.S. ten years prior to the
study. Eighty-six percent of the sample met criteria for PTSD. Forty-three percent also
surpassed cut-offs for substantial emotional distress and 40% exceeded cut-offs for clinical
depression. Al-Saffar, Borga, Edman, and Hallstrom (2003) sampled foreign nationals
(Turkey, Iran, Saudia Arabia) who had immigrated to Sweden at least four years prior to the
study. All participants had previous trauma exposure, yet response across ethnic differences
was highly variable. The study found the presence of PTSD in 69% of the Iranians, 59% of
the Saudis, 53% of the Turks, and only 29% of the Swedes. Weine et al. (1995) reported
PTSD in 25% of a sample of Bosnian adolescents recently relocated to the United States.
Similar findings were reported among Kurdish youth refugees (Ahmad, 1992). Kinzie et al.
(1986) found that 50% of a Cambodian refugee sample living in the U.S. met criteria for
PTSD. Observed differences across studies are likely due to some combination of factors
such as differences in assessment, in culture, or the post-conflict situation. To better
identify the specific factors responsible for these differences will require further study.
Establishment of prevalence begs the question of whether a comparable factor
structure exists within a given PTSD measure. Sack et al. (1997) investigated the factor
structure of the Diagnostic Interview for Children and Adolescents (DICA; Welner et al,
1987) with Cambodian youth refugees. Results revealed the same factor structure as
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found in samples from industrialized cultures. Similarly, the Impact of Event Scale
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(Horowitz, Wilner, & Alvarez, 1979) revealed the same underlying factor structure when
used with Bosnian youth as when used with British youth (Smith, Perrin, Dyregrov, &
Yule, 2003). A study that compared Russian and American youth found that while PTSD
prevalence rates differed, the proportional severity of the symptom clusters and their
correlation with other forms of psychopathology were comparable (Ruchkin et al.,
2005). Whereas these findings lack sufficient validity to confirm that PTSD is the best
universal description of traumatic stress, they do indicate that PTSD can be similarly
measured across different settings.
Nationals remaining in a pre-industrialized setting.
These studies engaged samples who were either in their home country or had been
displaced to a relatively similar cultural setting. There is still a paucity of data when it
comes to the assessment of traumatic stress reactions in these populations. A
comprehensive review assessed for PTSD prevalence rates and found that only 6% (8 out of
135) used samples from developing countries (De Girolamo & McFarlane, 1996).
Traumatic stress symptoms were solicited from a small sample of victims of
domestic violence among the Ju/’hoansi (Kalahari Bushmen) of eastern Namibia, one of the
world’s last ethnic groups still transitioning from a hunter-gatherer lifestyle (McCall &
Resick, 2003). Thirty-five percent met criteria for PTSD and 85% reported at least some
avoidance/numbing symptoms, but not to the degree that DSM-IV criteria were met (three
or more). One year after the Rwandan Genocide, 1,830 Rwandan children were interviewed
using the Impact of Event Scale about their experiences and their reactions (Dyregrov,
Gupta, Gjestad, & Mukanoheli, 2000). Seventy-nine percent of the children exceeded the
cutoff for PTSD one year after the Genocide. In Sierra Leone, a study coordinated by the
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nongovernmental aid organization Medicins Sans Frontières assessed for the presence
of PTSD in a sample of 245 residents and Internally Displaced Person (IDP’s) near
Freetown (Raymond, 2000). Based on their responses to a structured interview, the authors
concluded that 99% of respondents met criteria for PTSD. In another study in Sierra Leone,
PTSD symptoms were assessed among refugees in a camp in The Gambia (Fox & Tang,
2000). Forty-nine percent of the sample yielded scores indicative of PTSD, while 80% met
for anxiety and 85% for depression. In Northern Uganda, a structured clinical interview was
used to broadly compare the Sudanese children living as refugees to Ugandan children who
had not experienced war and flight (Paardekooper, de Jong, & Hermanns, 1999). The
Sudanese reported increased disturbances from memories, suicide ideation, worries about
their future and worries about the risk of siblings being hurt. Even though the Sudanese
children did report more symptoms commonly associated with PTSD, the authors
appropriately abstain from classifying the symptoms as psychopathology given the lack of
validated measures available for use with Ugandan and Sudanese children. Thus, studies
utilizing etic methodology conducted in developing (African) countries have reported
varying PTSD prevalence rates, ranging from 35 – 99%.
Elsewhere, a few prevalence studies examined possible cultural differences (or
the lack thereof). The prevalence of PTSD among Filipinos six years after they were
displaced by the eruption of Mt. Pinatubo was assessed (Howard et al, 1999). Results
showed that prevalence rates for PTSD (and for major depression, generalized anxiety
disorder, bipolar disorder, and alcohol abuse) did not vary between culturally traditional
(Aeta) and non-traditional groups. PTSD was the most common single diagnosis across
the two subgroups (27.6%) and was found in 32.2% of the Aetas studied. Shrestha et al
(1998) found that Bhutanese refugees who had torture histories had much higher PTSD
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prevalence rates than a highly similar cohort that lacked a torture history. A large-
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scale study used comparable assessment methods in four post-conflict settings (Algeria,
Cambodia, Ethiopia, and Palestine), and reported that PTSD and other anxiety disorders
were the most prevalent disorders in all four settings. For those exposed to violence,
PTSD was the most prevalent (except in Cambodia; de Jong et al., 2001). Yet, the
authors highlight the various contextual differences that were most predictive of
traumatic stress. These contextual predictors included torture, psychiatric history, poor
living conditions, daily hassles, domestic stress, death in or separation from family, and
alcohol abuse (de Jong et al. 2001). Table 1 provides a summary of studies of prevalence
and their findings.
Table 1. Summary of findings of cross-cultural adult PTSD prevalence studies
Citation
Carlson & RosserHogan (1994)
Sample
Cambodian refugees in U.S.
ten years (n = 50)
Al-Saffar et al. (2003)
Foreign nationals (Turkey,
Iran, Saudia Arabia) more
than 4 years in Sweden (n =
115)
Weine et al. (1995)
Bosnian adolescents recently
relocated to the United States
(n = 20)
Ju/’hoansi (n = 20)
McCall & Resick
(2003)
Dyregrov et al. (2000)
Raymond (2000)
Fox & Tang (2000)
Howard et al, 1999
Shrestha et al. (1998)
Rwandan children (n = 1830)
1 year post-genocide
Sierra Leonean(n = 245)
Sierra Leonean refugees in
The Gambia (n = 55)
Filipinos after Mt. Pinatubo (n
= 351)
Bhutanese refugees (n = 526)
de Jong et al., 2001
Algeria, Cambodia, Ethiopia,
and Gaza
Wang et al. (2000)
China (n = 338)
Measures
PTSD checklist
(DSM-III),
HSCL-25
SIP
PSS
Structured
interview
IES (shortened
version)
IES
HTQ, HSCL-25
PCL-S for
DSM-IV
Clinical
interview based
on criteria
CIDI PTSD
module
PTSD prevalence
86%
PTSD in 69% of the
Iranians, 59% of the
Saudis, 53% of the Turks,
and only 29% of the
Swedes
25%
35%
79%
99%
49%
27.6%
Prevalence (across all
symptoms) higher than
comparison group
37.4% Algeria, 28.4%
Cambodia, 15.8%
Ethiopia, 17.8% Gaza
24.2%
CIDI PTSD
module
CIDI = Composite Interview Diagnostic Interview; HSCL-25 = Hopkins Symptom Checklist; HTQ = Harvard Trauma
Questionnaire; IES = Impact of Event Scale; PCL-S = Posttraumatic Symptom Checklist; PSS = PTSD Symptoms
Scale SIP = Self rating Scale for PTSD
Research with emic approaches
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Research using emic approaches are not well suited to assessing prevalence
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but can better characterize the local manifestation of traumatic stress. Emic approaches
cast a broader net and are more likely to capture symptoms that do not fall within
predetermined categories. In an ethnographic study with Mexican disaster survivors,
participants described 14 of the 17 PTSD symptoms with little or no prompting (Norris
et al., 2001). Additionally, the rank order frequency of PTSD symptoms closely matched
that of other post-disaster PTSD studies. Baron’s (2002) qualitative analyses and focus
groups with Sudanese refugees in Northern Uganda revealed a consistent pattern of
symptoms: anxiety, numerous somatic complaints, standard depressive symptoms,
estrangement from friends and family, and loss of motivation to care for family and self
(Baron, 2002). Although some of these are symptoms of PTSD, others are not, and the
list exhibits a broader symptom picture than offered by the diagnosis of PTSD. These
same studies found that refugee and IDP complaints consistently focused more on
concerns for survival (lack of food, poor health care, threat of violence), rather than on
traumatic events they had suffered and their ensuing symptoms (Baron, 2002).
Moreover, the majority of IDP’s and refugees did not develop distressful symptoms as a
result of traumatic events (Baron, 2002); the same has been said to hold true for civilians
in industrialized settings (Bonanno, 2004). Another study in Uganda reported that
whereas PTSD symptoms were often reported, they were less of the focus of distress
than were somatic complaints (Bracken et al., 1995). The results from these emic studies
suggest that PTSD may be an overly narrow characterization of traumatic stress across
these different cultures, and may not be the best descriptor of reactions to trauma in all
settings.
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One study drew from the advantages of both etic and emic approaches in order
to capture the fullest possible representation of traumatic stress. Yeomans, Herbert, and
Forman (in press) used a combination of qualitative and quantitative methods to solicit
symptoms among internally displaced people in Burundi all of whom had a history of
one or (usually) more conflict-related traumatic events. Standardized measures showed
that distress was mostly manifest in symptoms of somatization, anxiety, and depression,
and less so in specific PTSD symptoms. Content analysis of open-ended questions (that
were asked prior to specific symptom solicitation) that probed for reactions to traumatic
events revealed these to be, in order of frequency, material complaints, depression,
PTSD, and anxiety. Thus, standardized and open-ended methods suggested that
Burundians conceptualized their traumatic stress mostly in terms of material complaints
– a likely function of both the culture and the economic realities of this sample.
Symptom variation
Accumulating evidence suggests that there is substantial variability in the
expression of specific traumatic stress symptoms between cultures. Among the findings
of PTSD prevalence and some indications of similar factor structure in diverse parts of
the globe, there is substantial variability in the specific traumatic stress symptoms.
Marsella and colleagues (Marsella et al., 1996; Marsella & Christopher, 2004) have
argued that intrusive symptoms may be universal whereas avoidance/numbing may be
more culturally based (Marsella et al., 1996). This contention has been supported in a
number of studies (Dyregrov, Gupta, Gjestad, & Mukanoheli; 2000; McCall & Resick,
2003). Marsella et al. (1996) suggested that PTSD prevalence rates may be highest in
cultures where avoidance and numbing behaviors are more common, as such practices
may serve to maintain the other symptoms (Foa et al, 1989). Norris et al. (2001) studied
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the psychological impact of Hurricane Paulina in Mexico and Hurricane Andrew in
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the United States and found that Mexicans endorsed significantly more intrusion and
avoidance symptoms, whereas Americans endorsed more arousal symptoms. The authors
suggest that whereas the high PTSD prevalence rates and their correlation to trauma
exposure may support the utility of the PTSD construct cross-culturally, they caution
against using PTSD solely as a unidimensional construct. The differences found would
not have been evident if PTSD had been considered unidimensionally. Notably, Perilla
et al. (2002) found that after Hurricane Andrew, non-White Hispanics and English
speaking (more acculturated) Hispanics had comparable levels of PTSD whereas
Spanish-preferring Hispanics had significantly higher levels. Such differences across
cultural groups who have experienced comparable traumas point toward the possible
influence of cultural differences, linguistic differences, and acculturative processes on
symptom presentation..
Biological and environmental factors
A summary of the literature reveals the considerable variability in PTSD
prevalence and specific symptom presentation around the world. While observed
variability may be attributed to methodological and sampling differences, we still seek to
understand whether the results are more indicative of a culturally-bound disorder or the
inevitable variability of a more universal construct. There is a current trend in the
research to investigate biological markers associated with PTSD and to present the
presence of those markers as indicative of how PTSD is shaped by biological factors.
These include hormonal and neurobiological correlates to PTSD symptoms. For
instance, differences between those with and without trauma histories have been
detected in cortisol levels, atrophy of the hippocampus (McNally, 2003), and
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dysregulation of the hypothalamic-pituitary-adrenal system. These biological
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investigations have also been extended cross-culturally. In one study, Armenian youth
with greater earthquake exposure and subsequent PTSD symptoms had more depressed
cortisol levels than non-exposed youth (Goenjian et al., 1996). However, it should be
noted that the causality governing this relationship is not clear; we do not know if
cortisol levels predisposed the youth to acquire PTSD symptoms. The correlation of
biological markers to PTSD symptoms does not answer whether PTSD is more
biologically or culturally determined. It does suggest that particular biological markers
are associated with PTSD across different settings.
Despite the evidence that PTSD is a universal construct, a dissenting minority
argues that PTSD remains substantially a cultural construct. According to this position,
opportunity for secondary gain and a professional community’s expectation of protracted
symptomatology may be more the agents of the perpetuation of posttraumatic stress
symptoms than the traumatic event itself. The vast reduction in British solider war neuroses
between the first and second world wars provides some support for the notion that
posttraumatic stress is a culturally determined phenomenon. The reduction, is largely
attributed to the fact that medical providers communicated an expectation of pathology to
WWI trauma survivors, but did not do so to WWII survivors (Shephard, 1999). Further
supporting the culturally-bound syndrome argument is the changing picture of traumatic
stress over time from paralysis to hemianesthesia, fatigue, mutism and intractable trembling
to the modern day PTSD trinity of intrusion, avoidance/numbing, and hyperarousal
(Herbert & Sageman, 2004). PTSD may be a product of an era in which we increasingly
understand the psychology of an individual in terms of vulnerability instead of in terms of
resiliency (Summerfield, 2004). Distress has become equated with psychopathology and the
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effect of the PTSD diagnosis is to emphasize the “traumatogenic nature” of an event
over any resilience and protective factors (Kagee & Naidoo, 2004).
On the other hand, it has been argued that the refutation of the application of the
PTSD construct cross-culturally is a manifestation of a larger dynamic in which
professionals deny the existence of trauma in highly distressed populations (Dyregrov,
Gupta, Gjestad, & Raundalen 2002). The suggestion is that such perspectives serve to
relieve the international community of its sense of responsibility and its substantial guilt
over repeated failures to prevent or alleviate suffering. Yet, such accusations potentially
inhibit unbiased scientific discovery. Questioning the applicability of PTSD in nonindustrialized settings appears to be valid given the dramatic cultural differences that
exist. Though traumatic stress reactions, in general, may have a universal, biological
underpinning, vulnerability to trauma, symptom manifestation, and response to treatment
is very likely subject to contextual and cultural factors (Marsella, Friedman, & Spain,
1996).
Contextual factors influencing how traumatic reactions are reported
Social desirability. Actual reactions to traumatic events are not necessarily the
same as those reactions that are reported. While there are occasions when reactions may
be underreported, certain methods of assessing responses to trauma may create a context
where it is socially desirable to endorse particular symptoms. Even a carefully translated
and then validated measure is still subject to an effect of social desirability in which
participants’ responses are influenced by their perceptions of what a favorable answer
might be. Kinzie and Mason (1987) observed that the responses of Indochinese refugees
who lacked prior experience with psychological surveys and interviews were largely
influenced by politeness and a desire to respond correctly rather than by their true
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feelings. The use of emic or ethnosemantic methods such as open-ended questions,
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free-listing, key informant interviews, and pile sorts – all techniques that solicit
information without clearly revealing for what the interviewer is searching – may offer
certain advantages over standardized measures (Kagee & Del Soto, 2003; Marsella,
1996; Wilk & Bolton, 2002).
Power Imbalance. A power differential exists in any therapeutic or health care
relationship, yet it is particularly acute in the cross-cultural setting. Locals will often
ascribe greater value to industrialized culture and the perceived knowledge and resources
it embodies. “Hidden power dynamics and the tacit assumptions that Western knowledge
trumps local knowledge” can influence how participants choose to answer (Wessells,
1999, p.275). Members of traditional cultures often denigrate and abandon their own
models when confronted with those of the West, irrespective of their applicability
(Peddle et al., 1999). Reading self-report measures aloud to illiterate populations
increases the potential effect of the nature of the relationship between the participant and
interviewer (Pernice, 1994). Similarly, it may also be possible that the presentation of
expectations for specific symptoms or protracted vulnerability may be especially acute in
such settings. Yeomans et al. (in press) found a significant correlation between
participant prior exposure to PTSD psychoeducation and the nature and severity of their
symptoms.
Secondary Gain. Beyond the effect of social desirability mentioned above,
patients may endorse the symptoms of interest to the outsider with hopes of receiving
some sort of secondary benefit. People who are poverty-stricken and whose environment
has been destabilized by violence may very necessarily shape their presentation to
increase the odds that they will receive the care and attention that is being offered to
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those determined as in need (Wessells, 1999; Kagee & Naidoo, 2004). Such a
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dynamic is not limited to non-industrialized settings, and PTSD has come to play an
essential role in insurance claims, asylum applications, veteran benefits, and the
assistance of victims in the United States and elsewhere (Frey, 2001). This is not to say
that people are necessarily malingering for personal gain, so much as that their
symptoms are in part determined by the climate in which they are solicited. De Jong
(2005) has countered the secondary gain argument, citing the high prevalence rates
among tortured Bhutanese refugees who he argues had no secondary gain to motivate
them and who easily recognized PTSD symptoms from a long list of topics.
Cultural factors
Social and institutional support. Social support and family functioning is a well
established protective factor for traumatic stress reactions (Thabet & Vostanis, 1999). The
level of support at an institutional level has also been shown to influence the prevalence of
PTSD. Nine months after an earthquake in China in north Hebei province, one village that
had suffered less damage but had received less reconstruction support had significantly
greater PTSD rates than a comparable village that suffered more seriously and had received
substantially more reconstruction support (Wang et al., 2000). Satttler et al. (2002) reported
that across different Caribbean nations struck by Hurricane Georges, loss of resources and
absence of social support was most predictive of Acute Stress Disorder four weeks after the
event. Wither and Culver (2001) argue that family and social variables are critical
predictors of distress and recovery. Thus, both social support and institutional response
after the event seems to reduce the level of subsequent traumatic stress. The more quickly
the social fabric, the material infrastructure, and a sense of normalcy can be restored, the
sooner the reduction in distress.
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Notions of personhood and familism. The notion of individuality on which the
classification of psychopathology is based is relatively unfamiliar in more collectivistic
conceptualizations of distress (Bracken et al., 1995). Non-industrialized cultures often
take more of a “socio-centric” than an “ego-centric” view of society (Zur, 1996).
Differences in the nature of traumatic stress symptoms have been linked to
individualistic and collectivistic cultural differences (Elsass, 2001). Understanding the
nature of the traumatic experience must take place within a framework that considers the
individual’s larger familial and cultural experience (Morsette, 2006).
Cultural meaning of symptoms. The literature offers numerous examples of how
the subjective meaning of traumatic events or the associated symptoms may mediate the
nature of the response to them (Zur, 1996). For instance, Punamaki (1996) found that
ideological commitment moderated Israeli youth distress from political hardships. Zur
(1996) discusses the Quiché Mayan who report recurrent dreams of those who died as a
result of atrocities in Guatemala. These dreams are associated with positive valence for
the comfort that they give. Bosnian adolescents understood memories of the events that
had befallen them as normal as opposed to pathological (Weine et al., 1995).
Furthermore, the absence of faith and conviction in the post-modern era and an increased
orientation toward introspection may foster a sense of uncertainty and emotional
vulnerability (Pupavec, 2004). The manifestations of traumatic reactions may be very
different in settings in which there exists a relative orientation toward stoicism, where a
fatalistic perspective dominates, and where primary import is placed on the social
network of the family and the community rather than the individual (Summerfield,
2004). In such cases, the exportation of models presuming vulnerability may be
contraindicated.
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Social acceptance of expressed distress. Cultures vary in the extent to which
19
expression of distress is socially sanctioned and reported. For instance, Chinese are
generally reluctant to express distress and often attribute such distress to external or
physical causes (Wang et al., 2000). Differences in traumatic stress across gender has
been observed both the U.S. and Mexico after landfall of comparable hurricanes (Norris,
Perilla, Ibanez & Murphy, 2001). Moreover, the differences in PTSD severity were
greater between men and women in Mexico than in the United States. The authors
speculate that Mexican culture tends to adhere to more traditional sex roles in which
male “machismo” inhibits disclosure of distress. These differences are considered less
pronounced in the U.S.
Functional impairment. The degree to which severity of symptoms is related to
the inability to meet one’s responsibilities of daily living may also vary across cultures,
especially in settings where emotional expression is encouraged. Indeed, one of the
dangers of a circumscribed interest in traumatic stress symptoms is the failure to fully
assess functional impairment, the most often overlooked criteria of a PTSD diagnosis. A
study in Nicaragua found that while peasants with traumatic histories reported PTSD
symptoms, they were not otherwise distressed and remained highly functional
(Summerfield & Toser, 1991). Witmer and Culver (2001) critique studies that presented
high rates of PTSD among Bosnian refugees despite reported high rates of functioning
(e.g. GAF scores up to 87), pointing to the potential for critical failure when a focus on
pathology obviates consideration of resilience. Even the most comprehensive battery of
symptom measures may fail to critically assess degree of functional impairment (Kagee
& Naidoo, 2004). Figure 1 summarizes some of the factors that determine the
manifestation of traumatic stress.
Figure 1. Factors shaping specific manifestation of traumatic stress.
Traumatic Stress
Cultural
factors
Biological
and
genetic
factors
Environmental
factors
Individual
Traumatic
event
Traumatic
stress
reaction
Cultural differences
Social desirability or secondary gain
Power imbalance
Method of solicitation
No distress
PTSD
Distress
other than
PTSD
20
Traumatic Stress
21
Challenges of assessment and treatment
As always, the challenge that remains is the integration of theoretical
perspectives and empirical findings into practical strategies and emphases for clinical
work. This challenge is exacerbated by the complex issue of culture and the necessity of
simultaneously attending to both group and individual differences. Ultimately, the
client’s individuality precedes his or her affiliation with any particular group. At the
same time, cultural identity is typically associated with personal experiences and cultural
perspectives relevant to conceptualization and treatment. The clinician, despite
prevalence rates, biological factors, and cultural variables, must still fundamentally
understand the patient’s perspective and report. Familiarity with cultural factors that
influence traumatic stress presentation leads to fluency with indigenous idioms of
distress, alternative models, research methods best suited for cross-cultural
investigations, the pitfalls of assessment techniques and specific measures, and culturally
sensitive and effective treatments.
Idioms of distress. Patient conceptualization and perception of traumatic stress is
typically not seen as related to the trauma history. Research on Bhutanese refugees
found that most often distress is conceptualized in terms of angered gods, dissatisfied
spirits, or some form of witchcraft (Shrestha, 1998). Youth in Palestine with trauma
histories reported a preponderance of conversion fits, behavioral problems, and
psychosomatic complaints (Abu Hein et al., 1993). Hinton et al. (2002) described “Weak
Heart” syndrome among Khmer refugees that closely resembles PTSD and panic
disorder. It should also be recognized that traumatic stress symptoms as we know them
may not be the impetus by which people seek treatment (Marsella & Christopher, 2004).
Traumatic Stress
Assessment. The fact that certain cultures do not have words for particular
22
symptoms not only makes using PTSD measures cross-culturally potentially
problematic, it could indicate that these reactions are simply not observed in that society.
Studies have found the Impact of Event Scale (IES; Horowitz, Wilner & Alvarez, 1979)
impossible to translate because items within the intrusion symptom cluster as well as the
avoidance symptom cluster lost their specificity of meaning and became redundant
(Terheggen et al, 2001). Three items (avoidance/numbing symptoms) on the Post
Traumatic Inventory (PTI; Carlson & Rosser-Hogan, 1994) were eliminated because
they could not be translated when used with a Cambodian immigrant population
(Carlson & Rosser-Hogan, 1994). As was discussed earlier, the vast majority of
measures have not been validated for specific populations. We still have a considerable
deficit of assessment tools with unproven reliability and validity in most preindustrialized settings. We must remember, that even as there may exist a general
universal response to trauma, the application of PTSD as a construct as the focus of
assessment potentially minimizes the differences that do exist (Kagee & Naidoo).
Clearly, given the challenges of successful translation, a PTSD measure should never be
considered adequate for making a diagnosis, especially in the cross-cultural context
(Keane, Kaloupek, & Weathers, 1996; Green, 1991; Pernice, 1994).
Treatment. The literature remains quite limited as far as the efficacy of different
treatments for traumatic stress in diverse cultural settings. The majority of the crosscultural treatment research has been conducted with immigrant or refugee populations
who have left their home country and begun an acculturative process. Predictably, the
limitations of many of the studies (e.g., no comparison group) preclude strong
conclusions. There is some indication that the current “gold standard” treatment for
Traumatic Stress
PTSD of prolonged exposure therapy may also be efficacious cross-culturally yet
23
further investigation is warranted.
A recent review paper found only eight PTSD treatment studies of adult refugee
populations. Three of these were essentially case studies and most of the others lacked
comparison groups and sizeable samples (for a full review see Nicholl & Thompson,
2004). For instance, one study treated 20 Bosnian refugees with Testimony
Psychotherapy, an approach that incorporates substantial elements of imaginal exposure
techniques (Weine et al., 1998). Significant decreases in PTSD and other symptom types
could not be attributed to the specific intervention given the absence of a comparison
group. Another study provided an analysis of CBT treatment compared to exposure
treatment alone for a group of traumatized refugees (Paunovic & Ost, 2001). Goenjian et
al. (1997) using a grief-focused psychotherapy significantly reduced PTSD symptoms
among post-earthquake (1988) Armenian youth compared to a wait-list control. Kosovar
youth (n = 18) recently arrived in Denmark were treated with a short trauma
psychoeducational intervention (Staaehr, 2001). PTSD symptoms as measured on the
IES (Impact of Events Scale) indicated significant decreases in symptoms. However, this
study also lacked a comparison groups. Another study in Britain with children (n = 26)
from diverse war-ravaged countries assessed the effect of an intervention that focused on
PTSD psychoeducation and coping strategies. Results indicated a significant reduction in
PTSD symptoms post-intervention compared to a waitlist control. However, these gains
were not maintained at two months post-intervention.
A few studies report on components of humanitarian interventions with samples
still in their home country. Trauma treatment and education programs have been
developed for Eastern Europe (Bosnia and Croatia) and different regions of Africa
Traumatic Stress 24
(Miller & Rasco, 2004). Given the challenges of such an environment and the meager
budget on which many of these programs are administered, there is a paucity of outcome
studies in existence. Even developers of recent innovative interventions for refugees
acknowledge the legitimate difficulty and the unfortunate dearth of evaluative efforts
(Hubbard & Miller, 2004). Of those that do exist, some have opted for anecdotal
summaries or more qualitative methods, whereas others have taken more of an empirical
approach. Fewer still have been published in peer-reviewed journals. However, a few
randomized controlled trials in pre-industrialized settings exist.
A sample of forty-three Sudanese refugees in Northern Uganda were randomly
assigned to either one session of PTSD psychoeducation, 4 sessions of psychoeducation
plus supportive counseling (SC), or four sessions of psychoeducation plus narrative
exposure therapy (NET; Neuner, Schauer, Klaschik, Karunakara, & Elbert, 2004). NET
was associated with significant decreases in PTSD symptoms at post-intervention and at
one-year follow up. No significant changes were associated with SC, and
psychoeducation was associated with significant increases in PTSD symptoms at post
intervention and one-year follow up.
Five years after the Rwandan genocide, Staub, Pearlman, Gubin, and
Hagengimana (2005) designed and evaluated an intervention for survivors. The
intervention took the form of a nine-day training of workshop facilitators and included
psychoeducational lectures on PTSD. Traumatic experiences, psychological symptoms,
and orientation toward reconciliation were assessed in the participants of the subsequent
workshops, not in the facilitators who were in direct receipt of the training. Controlling
for Time 1 symptoms and trauma history, results showed that two months after the
intervention, trauma symptoms (a combination of PTSD, traumatic grief, self-perceived
Traumatic Stress 25
functioning, Rwanda-specific trauma symptoms) decreased significantly more in the
intervention condition than in either of the other two (traditional treatment, wait list
control).
Treatment guidelines
While the determination of the intervention of choice for cross-cultural treatment
of traumatic stress will require additional research and will not likely ever lead to a
singular answer, there are some general treatment principles that can be gleaned from the
literature. Indigenous customs and local healing practices can be integrated into any
foreign intervention (Wessells, 1999). These practices exist, can be identified, and used
as a complement to outside models. For instance, the Indigenous Australians consider
connection to land, kinship networks, and ritual as critical ingredients for the
maintenance of well-being (Petchkovsky & San Roque, 2002). Others emphasize the
socio-cultural responses such as dances, ceremonies, and rituals, which Westerners often
overlook – for example the reconstruction of a community center, market, or gathering
location. These components could all be integrated into a predominantly cognitive or
behavioral treatment mode. However, dependence of cognitive processing to alleviate
symptoms could be irrelevant and can undermine the attention to cultural healing rituals
(Bracken, 1995). Finally, whether the inclusion of traditional healing approaches
increases effectiveness of treatment is an empirical question that is in need of additional
research.
Assuming that patients have a more collectivist and familial orientation to
distress, some may prefer a group therapeutic format to individual psychotherapy. A
clinician should be similarly cautioned against focusing on the traumatic event and the
specific impact on the individual (Griffiths, 2001). In fact, the field should be very wary
Traumatic Stress
about using treatment and prevention models that directly or indirectly suggest
26
vulnerability and the likelihood of protracted problems in trauma survivors. These
models, through the powers of suggestion, may be doing harm to those they intend to
help. Instead, treatment should emphasize normalization of symptoms and of recovery.
Patients from any culture will likely benefit from understanding that what they are
experiencing is normal reaction to abnormal events and is expected to remit with time
(Herbert & Forman, 2005)
Summary
A growing body of research points to the presence of the syndrome of PTSD in
culturally diverse settings. Though utilitarian, the application of the construct of PTSD
remains imperfect and associated with dangers that could undermine the greater purpose
of providing culturally appropriate care for those who have suffered from war, natural
disaster, or other traumatic events. As research continues to explore the degree to which
PTSD can be considered a universal construct, we should remain cautious in its
application cross-culturally.
A presumption that PTSD is the best model by which to recognize and treat
traumatic stress cross-culturally has a number of pitfalls. Too much attention on PTSD
constrains the search for a more sophisticated picture of how traumatic stress manifests
cross-culturally. We are only beginning to understand how PTSD overlaps with or
differs from local idioms of distress. The assumption that PTSD provides the best fit as a
model limits our capacity to explore diverse symptoms sets that may also be occurring.
The confidence in expectation of a particular symptom set can also easily lead to the
confirmation of its presence; some of the best scientists consistently discover exactly
Traumatic Stress
what they set out to find. Yet, not only can traumatic stress vary from the textbook
27
PTSD model, sometimes it does not occur at all.
The overuse of a PTSD model may therefore falsely predict specific symptoms
or overpathologize a temporary and normal reaction to a traumatic event. With PTSD
comes a presumption of greater vulnerability and the absence of resilience. Marsella &
Christopher (2004) argue that the normative response to crisis is the strengthening of
communal relationships on the social level and resilience on the individual level. Such a
response is beginning to receive more attention in the research (see Posttraumatic
growth), but all too often, the PTSD construct presumes protracted vulnerability before it
is necessarily evident. The call to reframe our investigations around resilience are slow
to catch on (Witmer & Culver, 2001)
There is mounting evidence for biological correlates to PTSD and a growing
number of international epidemiological studies concluding that PTSD is found across
cultures particularly in samples exposed to violence. Nonetheless, the sole application of
the PTSD model may not be the most useful model around which to focus prevention
and treatment services across cultures. De Jong (2005), despite having researched PTSD
prevalence rates around the globe, articulates the need to put more attention on other
mental health issues that remain underinvestigated, such as mood disorders, somatoform
disorder, dissociative disorders, and other anxiety disorders. The popularity of the PTSD
construct in both academic circles and popular culture can distract us from other factors
that may be more essential to formulating patient care cross-culturally. For instance,
PTSD was found to be associated with the experience of violence but also with other
factors such as living conditions and social instability (de Jong 2005). Similarly, Laban
et al. (2005) found that among Iraqi asylum seekers postmigration challenges in the daily
Traumatic Stress 28
life were the best predictors of psychopathology, even more so than traumatic events
themselves. Table 2 summarizes specific recommendations for both researchers and
clinicians.
Table 2. Considerations for researchers and clinicians working crossculturally with PTSD
For researchers:
•
•
•
Translate and back-translate measures
Utilize locals at all levels of research team
Use both qualitative and quantitative methods
For clinicians (and researchers):
•
First line of treatment be meeting material needs and
restoring social network
•
Be wary of overpathologizing: temper assumption of
vulnerability with assumption of resilience
•
•
Cast a broad net in the assessment of symptoms
Carefully assess functioning independently of symptom
endorsement
•
Integrate local idioms of distress and treatment methods as
appropriate
•
Work to reduce clinician-client power imbalance that may be
exacerbated by cultural differences.
•
Consider cultural differences of fatalism and collectivism
versus individualism
•
Inquire as to the personal meaning of the endorsed symptoms
Traumatic Stress
In summary, much of the literature indicates that in its different variations
29
around the world, PTSD appears to be universally evident (Marsella & Christopher,
2004). Yet, there is also evidence that Criterion A and its associated symptoms may vary
and are certainly influenced by cultural factors. Marsella & Christopher (2004)
summarize their review of the literature by stating “PTSD cannot be decontexualized
from the culture milieu in which it occurs, because this isolates it from its etiological
roots, experiential referents, and its method of mediation” (p. 527). Treatment must take
place within a cultural context but may necessarily integrate modern methods (Dyregrov
et al, 2002). The literature documents an increased sensitivity to the risks of treatments
without cultural considerations and the overmedicalization of traumatic stress, but we
must remain vigilant and continue to recenter our clinical and research work around a
contextualized view.
Arguing whether environmental or biological factors will rule the day in determining the
presentation of traumatic stress impossibly limits the answer to a reductionistic and stark
dichotomy that is more indicative of the vehemence of opposing perspectives than it is
of the dominance of factors shaping traumatic stress. Such dichotomy also fails to
inform the most appropriate approach to treatment of traumatic stress in a cross-cultural
setting. “It can be said that all disorders are essentially culture-bound syndromes because
no one can escape the influence of cultural factors in their conceptualization, experience,
display, and treatment responsivity” (Marsella et al. 1996, p.535). Whereas advances in
neuroimaging are bolstering the evidence for biological underpinnings of PTSD
symptoms, the specific manifestation of these symptoms will always be shaped by
cultural factors.
Traumatic Stress
30
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