Saccadic eye movements, schizotypy, and the role of neuroticism

TY - JOUR

T1 - Saccadic eye movements, schizotypy, and the role of neuroticism

AU - Ettinger, U

AU - Kumari, V

AU - Crawford, T J

AU - Flak, V

AU - Sharma, T

AU - Davis, R E

AU - Corr, P J

PY - 2005/1

Y1 - 2005/1

N2 - We investigated the relationships of anti- and prosaccades with psychometric schizotypy. One aim was to estimate the role of negative emotionality and general psychopathology (i.e. neuroticism) in this relationship. 115 non-clinical volunteers underwent infrared oculographic assessment of antisaccades and prosaccades. Schizotypy was assessed with the Personality Syndrome Questionnaire (PSQ-80), the Rust Inventory of Schizotypal Cognitions (RISC), and Eysenck Personality Questionnaire-Revised (EPQ-R) Psychoticism. Higher positive schizotypy scores predicted increased antisaccade errors (RISC) and greater prosaccade spatial error (PSQ-80 Unreality). Greater thought disorder (PSQ-80 Activity) predicted shorter prosaccade latencies. EPQ-R Neuroticism was substantially correlated with schizotypy but was not related to saccadic measures and did not account for their relationship with schizotypy. We conclude that saccadic performance patterns in schizotypy are not due to negative emotionality or general psychopathology, but specific to schizophrenia spectrum signs and symptoms. (C) 2004 Elsevier B.V. All rights reserved.

AB - We investigated the relationships of anti- and prosaccades with psychometric schizotypy. One aim was to estimate the role of negative emotionality and general psychopathology (i.e. neuroticism) in this relationship. 115 non-clinical volunteers underwent infrared oculographic assessment of antisaccades and prosaccades. Schizotypy was assessed with the Personality Syndrome Questionnaire (PSQ-80), the Rust Inventory of Schizotypal Cognitions (RISC), and Eysenck Personality Questionnaire-Revised (EPQ-R) Psychoticism. Higher positive schizotypy scores predicted increased antisaccade errors (RISC) and greater prosaccade spatial error (PSQ-80 Unreality). Greater thought disorder (PSQ-80 Activity) predicted shorter prosaccade latencies. EPQ-R Neuroticism was substantially correlated with schizotypy but was not related to saccadic measures and did not account for their relationship with schizotypy. We conclude that saccadic performance patterns in schizotypy are not due to negative emotionality or general psychopathology, but specific to schizophrenia spectrum signs and symptoms. (C) 2004 Elsevier B.V. All rights reserved.

UR - http://www.scopus.com/inward/record.url?scp=4143151684&partnerID=8YFLogxK

U2 - 10.1016/j.biopsycho.2004.03.014

DO - 10.1016/j.biopsycho.2004.03.014

M3 - Article

VL - 68

SP - 61

EP - 78

JO - Biological Psychology

JF - Biological Psychology

IS - 1

ER -