Prospective study of the association between neurobehavior disinhibition and peer environment on illegal drug use in boys and girls.

Background: Individual and contextual factors jointly participate in the onset and progression of substance abuse; however, the pattern of their relationship in males and females has not been systematically studied.

Objectives: Male and female children and adolescents were compared to determine the relative influence of individual susceptibility (neurobehavior disinhibition or ND) and social environment (deviancy in peers) on use of illegal drugs.

Methods: Boys (N = 380) and girls (N = 127) were prospectively tracked from age 10-12 to age 16 to delineate the role of ND and peer deviancy on use of illegal drugs.

[The factor analytic symptom structure of manic episode and its relationship with affective temperaments].

Objective: The aim of this study is to establish the factor analytic dimensions of manic episode, and to investigate relationship between established factors and underlying affective temperament.

Methods: Hundred patients who had been hospitalized in psychiatric clinics of Bakirköy Prof. Mazhar Osman Training and Research Hospital for Psychiatry and Neurology for DSM-IV bipolar disorder manic episode were assessed by Young Mania Rating Scale (YMRS), Montgomery-Asberg Depression Rating Scale (MADRS) and Positive And Negative Syndrome Scale (positive syndrome sub-scale) (PANSS) and followed by factor analysis.

Substance abuse amplifies the risk for violence in schizophrenia spectrum disorder.

The factors responsible for the association between schizophrenia and violence with or without co-occurring substance abuse have not been fully elucidated. The present study had two aims: (1) ascertain whether substance abuse augments the risk for violence in patients with schizophrenia; and, (2) determine whether violence is differentially related to positive and negative symptoms of schizophrenia. A sample of 133 adults were participated in this study.

Substance abuse and associated psychosocial risk factors among Turkish male adolescents.

This study reports the validation of the Drug Use Screening Inventory (DUSI) in a sample of Turkish youth. Clinical cases (N=90) were recruited from the inpatient and outpatient addictions treatment facility at Bakirkoy State Hospital for Psychiatric and Neurological Diseases in Istanbul, Turkey. Nonclinical cases (N=68) were recruited from the community by direct invitation from the researchers and advertisement.

Prevalence of alcohol use in Istanbul.

The current research assessed the prevalence of alcohol use in Istanbul, Turkey along with characteristics and severity of related problems. The data were collected from structured interviews including the CAGE Questionnaire to eliminate the severity of alcohol-related problems of 1,550 residents (743 women, 807 men) of Istanbul, ages 12 to 65 years. Current alcohol use was 25.