... mentorship of Kelly Rohan. Thank you for your encouragement, professionalism, and ... approxi... more ... mentorship of Kelly Rohan. Thank you for your encouragement, professionalism, and ... approximately 20-40% of the depressed population fulfilling criteria for the Atypical Specifier (Benazzi, 1999; Posternak & Zimmerman, 2002; Tam, Lam, Robertson, ...
Journal of Psychopathology and Behavioral Assessment, Jan 6, 2021
Research on seasonal affective disorder (SAD) has produced several etiological models of SAD symp... more Research on seasonal affective disorder (SAD) has produced several etiological models of SAD symptomatology, including a common cause model that conceptualizes symptoms as the result of a single underlying disease process and the Dual Vulnerability Model (Young et al., Journal of Affective Disorders, 22 , 191–197 1991 ) which posits that cognitive/affective symptoms of depression are responses to vegetative symptoms (fatigue, hypersomnia, increased appetite) in individuals with a cognitive vulnerability to these seasonal changes. This study used exploratory factor analysis and network analyses to examine 22 symptoms of winter SAD in 177 adults at the start of a randomized SAD treatment trial (Rohan et al., American Journal of Psychiatry, 172 , 862–9 2015 ). The factor analysis supported a novel four-factor model that included Negative Cognition, Loss of Vitality, Increased Appetite/Weight and Dysregulation across symptom domains. The results of the network model of interacting symptoms paralleled those of the factor analysis in producing four clusters of inter-correlated symptoms. A directed acyclic graph was constructed to model possible causal relations between symptom factors/clusters. Results suggest that vegetative symptoms (Loss of Vitality and Appetite/Weight) contribute to Dysregulation and that Loss of Vitality and Dysregulation contribute to Negative Cognition, supporting the overall structure of the Dual Vulnerability Model but with greater symptom differentiation. Findings have implications for how SAD should be researched (e.g., clusters vs. diagnosis or individual symptoms), opportunities for intervention, and the expected course of onset and remission.
Bhutanese refugees are at elevated risk for suicide, but culturally inflexible suicide risk model... more Bhutanese refugees are at elevated risk for suicide, but culturally inflexible suicide risk models may hinder accurate risk detection in this population. This cross-sectional study aimed to use a theoretical model based on the interpersonal psychological theory of suicide and the cultural model of suicide to improve suicide risk-assessment among Bhutanese refugees. Participants included 60 Bhutanese refugees (31 males and 29 females), aged 18 to 65, resettled in Vermont. Suicidal ideation (n = 4, 6.7%) was low, but a substantial minority (n = 29, 48.3%) endorsed some desire to be dead. Perceived burdensomeness, but not thwarted belongingness, was significantly associated with both suicidal ideation and the desire to be dead. Neither desire to be dead nor suicidal ideation was significantly related to suicide attempt history. Results highlight that including assessments of desire to be dead in addition to assessments of suicidal ideation may address the problem of underidentification of Bhutanese refugees at risk for suicidal behavior, particularly those who do not present with suicidal ideation. (PsycINFO Database Record (c) 2019 APA, all rights reserved).
... mentorship of Kelly Rohan. Thank you for your encouragement, professionalism, and ... approxi... more ... mentorship of Kelly Rohan. Thank you for your encouragement, professionalism, and ... approximately 20-40% of the depressed population fulfilling criteria for the Atypical Specifier (Benazzi, 1999; Posternak & Zimmerman, 2002; Tam, Lam, Robertson, ...
Journal of Psychopathology and Behavioral Assessment, Jan 6, 2021
Research on seasonal affective disorder (SAD) has produced several etiological models of SAD symp... more Research on seasonal affective disorder (SAD) has produced several etiological models of SAD symptomatology, including a common cause model that conceptualizes symptoms as the result of a single underlying disease process and the Dual Vulnerability Model (Young et al., Journal of Affective Disorders, 22 , 191–197 1991 ) which posits that cognitive/affective symptoms of depression are responses to vegetative symptoms (fatigue, hypersomnia, increased appetite) in individuals with a cognitive vulnerability to these seasonal changes. This study used exploratory factor analysis and network analyses to examine 22 symptoms of winter SAD in 177 adults at the start of a randomized SAD treatment trial (Rohan et al., American Journal of Psychiatry, 172 , 862–9 2015 ). The factor analysis supported a novel four-factor model that included Negative Cognition, Loss of Vitality, Increased Appetite/Weight and Dysregulation across symptom domains. The results of the network model of interacting symptoms paralleled those of the factor analysis in producing four clusters of inter-correlated symptoms. A directed acyclic graph was constructed to model possible causal relations between symptom factors/clusters. Results suggest that vegetative symptoms (Loss of Vitality and Appetite/Weight) contribute to Dysregulation and that Loss of Vitality and Dysregulation contribute to Negative Cognition, supporting the overall structure of the Dual Vulnerability Model but with greater symptom differentiation. Findings have implications for how SAD should be researched (e.g., clusters vs. diagnosis or individual symptoms), opportunities for intervention, and the expected course of onset and remission.
Bhutanese refugees are at elevated risk for suicide, but culturally inflexible suicide risk model... more Bhutanese refugees are at elevated risk for suicide, but culturally inflexible suicide risk models may hinder accurate risk detection in this population. This cross-sectional study aimed to use a theoretical model based on the interpersonal psychological theory of suicide and the cultural model of suicide to improve suicide risk-assessment among Bhutanese refugees. Participants included 60 Bhutanese refugees (31 males and 29 females), aged 18 to 65, resettled in Vermont. Suicidal ideation (n = 4, 6.7%) was low, but a substantial minority (n = 29, 48.3%) endorsed some desire to be dead. Perceived burdensomeness, but not thwarted belongingness, was significantly associated with both suicidal ideation and the desire to be dead. Neither desire to be dead nor suicidal ideation was significantly related to suicide attempt history. Results highlight that including assessments of desire to be dead in addition to assessments of suicidal ideation may address the problem of underidentification of Bhutanese refugees at risk for suicidal behavior, particularly those who do not present with suicidal ideation. (PsycINFO Database Record (c) 2019 APA, all rights reserved).
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