BDNF serum concentrations in first psychotic episode drug-naïve schizophrenic patients: Associations with personality and BDNF Val66Met polymorphism

The Positive and Negative Syndrome Scale (PANSS) for Schizophrenia

Stanley R. Kay, Abraham Fiszbein, Lewis A. Opler · Schizophrenia Bulletin · 1987 · 21K citations · Full text

Psychopathology, Psychiatry, Psychotic Disorder +11

Practical Statistics for Medical Research.

Sophie Walter, Daniel Altman · Biometrics · 1992 · 11.7K citations

Statistics, Medical Statistic, Population Health Sciences +1

A scaled version of the General Health Questionnaire

David Goldberg, V F Hillier · Psychological Medicine · 1979 · 5.4K citations

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The BDNF val66met Polymorphism Affects Activity-Dependent Secretion of BDNF and Human Memory and Hippocampal Function

Michael Egan, Masami Kojima, Joseph H. Callicott et al. · Cell · 2003 · 3.8K citations · Full text

Molecular Neuroscience, Hippocampal Function, Brain Function +9

A revised version of the psychoticism scale

Sybil B. G. Eysenck, H.J. Eysenck, Paul Barrett · Personality and Individual Differences · 1985 · 3.1K citations

Psychiatric Evaluation, Psychiatry, Psychotic Disorder +7