Research output: Contribution to Journal/Magazine › Journal article › peer-review
Saccadic eye movements, schizotypy, and the role of neuroticism. / Ettinger, Ulrich; Kumari, Veena; Crawford, Trevor J. et al.
In: Biological Psychology, Vol. 68, No. 1, 01.2005, p. 61-78.Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Saccadic eye movements, schizotypy, and the role of neuroticism.
AU - Ettinger, Ulrich
AU - Kumari, Veena
AU - Crawford, Trevor J.
AU - Flak, Vanja
AU - Sharma, Tonmoy
AU - Davis, Robert E.
AU - Corr, Philip 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.
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.
KW - Antisaccade
KW - Prosaccade (reflexive saccade
KW - visually-guided saccade)
KW - Oculomotor control
KW - Schizotypal personality traits
KW - Neuroticism
KW - Negative emotionality
KW - Endophenotype
KW - Schizophrenia
U2 - 10.1016/j.biopsycho.2004.03.014
DO - 10.1016/j.biopsycho.2004.03.014
M3 - Journal article
VL - 68
SP - 61
EP - 78
JO - Biological Psychology
JF - Biological Psychology
SN - 0301-0511
IS - 1
ER -