- SUNY: Downstate Medical Center, Psychiatry, Department Memberadd
Research Interests:
Research Interests:
Research Interests:
Research Interests: Experimental games, Nonparametric Statistics, Audiology, Adolescent, Medicine, and 15 moreBrain Mapping, Impulsivity, Evoked Potentials, Humans, Cerebral Cortex, Gambling, Female, Male, Gender Difference, Adult, Analysis of Variance, Low Resolution, Choice Behavior, Impulsive behavior, and Medical and Health Sciences
Inpatient psychiatric treatment and violence assessment are strongly influenced by a patient's race and class identity. The authors argue that psychiatrists enact a crypto-apartheid wherein they recognize and condemn the structural... more
Inpatient psychiatric treatment and violence assessment are strongly influenced by a patient's race and class identity. The authors argue that psychiatrists enact a crypto-apartheid wherein they recognize and condemn the structural racism and classism disadvantaging many patients, but through violence risk assessments and dispositional decisions, psychiatrists also function as arbiters of public safety and repeatedly disadvantage less-privileged patients to further symptomatic decline or even subsequent incarceration.
Research Interests:
Research Interests:
The outcome related negativity (ORN), an event-related potential (ERP) component around 200-250 ms, has been suggested to be an electrophysiological brain signature for the processing of loss and gain. This component has been suggested to... more
The outcome related negativity (ORN), an event-related potential (ERP) component around 200-250 ms, has been suggested to be an electrophysiological brain signature for the processing of loss and gain. This component has been suggested to involve theta band oscillations as a primary feature. The aim of the current study is to examine oscillatory activity and functional connectivity between frontal and parietal regions during the processing of monetary loss and gain. The sample consisted of 36 healthy individuals with the age range of 18-35 years. A 64-channel EEG was recorded continuously while the subjects were performing a gambling task that prompted the subject to select one of two amounts, 10 and 50. Loss (-50) and Gain (+50) conditions were analyzed using a Wavelet coherence method for frontal (FZ) and parietal (PZ) regions. Time-Frequency representation and Power and Coherence were plotted and compared between loss and gain conditions. Loss condition had more power at FZ while...
A dysfunctional neural reward system has been shown to be associated with alcoholism. The current study aims to examine reward processing in male alcoholics by using event-related potentials (ERPs) as well as behavioral measures of... more
A dysfunctional neural reward system has been shown to be associated with alcoholism. The current study aims to examine reward processing in male alcoholics by using event-related potentials (ERPs) as well as behavioral measures of impulsivity and risk-taking.
Research Interests: Electrophysiology, Cognition, Electroencephalography, Adolescent, Medicine, and 15 moreBrain Mapping, Brain, Evoked Potentials, Humans, Alcoholism, Gambling, Male, Middle Aged, Adult, Analysis of Variance, Psychiatric, Error Related Negativity, Impulsive behavior, Psychiatric Status Rating Scales, and Medical and Health Sciences
Research Interests: Experimental games, Nonparametric Statistics, Adolescent, Brain Mapping, Evoked Potentials, and 15 moreHumans, Cerebral Cortex, Gambling, Female, Male, Gender Difference, Reaction Time, Adult, Analysis of Variance, Reference Values, Low Resolution, Choice Behavior, Impulsive behavior, Psychology and Cognitive Sciences, and Medical and Health Sciences
Research Interests:
Research Interests:
Research Interests:
Research Interests:
The outcome related negativity (ORN), an event-related potential (ERP) component around 200-250 ms, has been suggested to be an electrophysiological brain signature for the processing of loss and gain. This component has been suggested to... more
The outcome related negativity (ORN), an event-related potential (ERP) component around 200-250 ms, has been suggested to be an electrophysiological brain signature for the processing of loss and gain. This component has been suggested to involve theta band oscillations as a primary feature. The aim of the current study is to examine oscillatory activity and functional connectivity between frontal and parietal regions during the processing of monetary loss and gain. The sample consisted of 36 healthy individuals with the age range of 18-35 years. A 64-channel EEG was recorded continuously while the subjects were performing a gambling task that prompted the subject to select one of two amounts, 10 and 50. Loss (-50) and Gain (+50) conditions were analyzed using a Wavelet coherence method for frontal (FZ) and parietal (PZ) regions. Time-Frequency representation and Power and Coherence were plotted and compared between loss and gain conditions. Loss condition had more power at FZ while...
Research Interests: Experimental games, Nonparametric Statistics, Risk assessment, Adolescent, Brain Mapping, and 17 moreEvoked Potentials, Humans, Cerebral Cortex, Gambling, Female, Male, Gender Difference, Reaction Time, Young Adult, Adult, Sex Factors, Analysis of Variance, Risk Assessment, Reference Values, Low Resolution, Choice Behavior, and Impulsive behavior
A dysfunctional neural reward system has been shown to be associated with alcoholism. The current study aims to examine reward processing in male alcoholics by using event-related potentials (ERPs) as well as behavioral measures of... more
A dysfunctional neural reward system has been shown to be associated with alcoholism. The current study aims to examine reward processing in male alcoholics by using event-related potentials (ERPs) as well as behavioral measures of impulsivity and risk-taking.
Research Interests: Electrophysiology, Cognition, Electroencephalography, Risk Taking, Adolescent, and 16 moreReward, Brain Mapping, Brain, Evoked Potentials, Humans, Alcoholism, Gambling, Male, Young Adult, Middle Aged, Adult, Analysis of Variance, Psychiatric, Error Related Negativity, Impulsive behavior, and Psychiatric Status Rating Scales
Neurocognitive correlates of impulsivity have been thought to underlie several of externalizing/disinhibitory disorders including alcoholism. The current study examines the aspects of impulsivity in terms of behavioral measures as well as... more
Neurocognitive correlates of impulsivity have been thought to underlie several of externalizing/disinhibitory disorders including alcoholism. The current study examines the aspects of impulsivity in terms of behavioral measures as well as event-related oscillations (EROs) while performing a gambling task that involves monetary gain and loss. Behavioral measures of impulsivity were analyzed and brain oscillations were decomposed into time-frequency-amplitude data using the S-Transform algorithm. The mean amplitude in the outcome-related negativity (ORN) time window (225-275 ms) in each frequency band was statistically analyzed in both groups across four outcomes that involved valence (loss or gain) and magnitude (50 or 10 cents). Alcoholics showed higher impulsivity as measured in Barratt Impulsivity Scale (BIS) and in other task-related impulsivity responses. Further, alcoholics showed significantly decreased amplitude in delta (1-3 Hz) and theta (4-7 Hz) band during the ORN time wi...