OBJECTIVE This study aimed to investigate temperament subtypes in obese patients. METHODS Ninety-three bariatric surgery candidates and 63 obese inpatients from a psychotherapy unit answered the Behavioral Inhibition System/Behavioral Activation System Scale (BIS/BAS), the Effortful Control subscale of the Adult Temperament Questionnaire-Short Form (ATQ-EC), and questionnaires for eating diso...

Links between the reinforcement sensitivity theory (RST) proposed by Gray and several mental disorders have been established in a number of studies. However, specifically in the field of personality disorders, there is a lack of evidence regarding clinical samples. The aim of the present study was to test the RST in subjects with borderline personality disorder (BPD, n = 100), compared to subje...

Mian-Li Ong: Differentiating Bipolar Spectrum Disorders: The Diagnostic Utility of the BIS/BAS Scales (Under the direction of Eric A. Youngstrom) The present study examined discriminative validities of the Behavioral Inhibition System/Behavioral Approach System (BIS/BAS) scales in differentiating bipolar spectrum disorders (BSDs) from other disorders. Participants were youth recruited from a co...

OBJECTIVE This research was conducted to investigate the relationship between behavioral activation-inhibition systems and bullying-victimization behaviors among adolescents. METHOD This was a correlational and cross-sectional study. Two hundred and thirty school boys were selected randomly by multistage cluster sampling method, and participated in this research. This sample responded to a de...

Urban Latino youth are exposed to high rates of violence, which increases risk for diverse forms of psychopathology. The current study aims to increase specificity in predicting responses by testing the hypothesis that youths' reinforcement sensitivity-behavioral inhibition (BIS) and behavioral approach (BAS)-is associated with specific clinical outcomes and increases risk for the development o...

Summar)-Behavioral inhibition system (BIS) functioning (Gray, The Psychology of Fear and Stress. Cambridge University Press, 1987) was assessed by measuring whether approach responses were emitted more slowly when a cue for punishment was present. Experiment 1 compared highand low-anxious as well as highand low-impulsive university students. As predicted by Gray’s model (Gray, The neuropsycholo...

Patients with borderline personality disorder (BPD) suffer from various impairments in emotional functioning such as affective instability, inappropriate anger and unstable relationships. These deficits may influence two fundamental motivational systems, the behavioral inhibition system (BIS) and behavioral activation system (BAS). To investigate behavioral intentions and possible impairments i...

The Behavioral Inhibition System (BIS) is described in Gray's Reinforcement Sensitivity Theory as a hypothetical construct that mediates anxiety in animals and humans. The neuroanatomical correlates of this system are not fully clear, although they are known to involve the amygdala, the septohippocampal system, and the prefrontal cortex. Previous neuroimaging research has related individual dif...

In two studies, we examined the influence of behavioral inhibition system (BIS) and need for closure (NFC) on information processing in decision making. We expected that BIS would regulate behavior in a decisional context and that this relationship would be mediated by epistemic motivation expressed by NFC. In addition, drawing on contradictory findings in the literature on anxiety, NFC, and in...