A longitudinal analysis of eye tracking dysfunction and attention in recent-onset schizophrenia.
The effect of an attentional manipulation on eye tracking dysfunction (ETD) in the early stages of schizophrenia was examined in 34 recent-onset schizophrenic patients and 24 demographically matched normal subjects over a 1-year period. An attentional enhancement manipulation improved eye tracking performance of recent-onset schizophrenic patients more than that of normal subjects. Eye tracking level also was moderately stable for both groups over the course of 1 year. The possible role of attentional allocation in ETD highlights the need for further examination of the interface between attentional and eye tracking measures of vulnerability to schizophrenia.
Yee
C M
CM
Department of Psychology, University of California, Los Angeles 90095-1563, USA. yee@psych.ucla.edu
Nuechterlein
K H
KH
Dawson
M E
ME
D000328:Adult; D001288:Attention / Q000502:physiology*; D004585:Electrooculography; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D011603:Psychophysiology; D011698:Pursuit, Smooth / Q000502:physiology*; D012559:Schizophrenia / Q000175:diagnosis / Q000503:physiopathology*; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted