Smyrnis Nikolaos, Evdokimidis Ioannis, Stefanis Nicholas C, Avramopoulos Dimitrios, Constantinidis Theodoros S, Stavropoulos Alexios, Stefanis Costas N
University Mental Health Research Institute, Neurology Department, National University of Athens, Greece.
J Abnorm Psychol. 2003 Aug;112(3):403-14. doi: 10.1037/0021-843x.112.3.403.
A total of 1,273 conscripts of the Greek Air Force performed antisaccades and completed self-reporting questionnaires measuring schizotypy and current state-dependent psychopathology. Only 1.0% of variability in antisaccade performance indices was related to psychometric scores in the population and could be attributed more to current state-dependent symptoms such as anxiety rather than to schizotypy. In contrast, a specific increase of error rate and response latency variability and a high correlation of these 2 variables was observed in a group with very high schizotypy scores. This effect was independent of anxiety and depression, suggesting that a specific group of psychosis-prone individuals has a characteristic deviance in antisaccade performance that is not present in the general population.
