Self-face recognition in the ultra-high risk for psychosis population
Article first published online: 3 DEC 2013
© 2013 Wiley Publishing Asia Pty Ltd
Early Intervention in Psychiatry
Volume 9, Issue 2, pages 126–132, April 2015
How to Cite
Jia, H., Yang, J., Zhu, H., Liu, J. and Barnaby, N. (2015), Self-face recognition in the ultra-high risk for psychosis population. Early Intervention in Psychiatry, 9: 126–132. doi: 10.1111/eip.12097
- Issue published online: 11 MAR 2015
- Article first published online: 3 DEC 2013
- Manuscript Accepted: 22 SEP 2013
- Manuscript Received: 22 MAY 2013
- Beijing Education Committee Funds. Grant Number: 1102013501
- Special Scientific Research Project in Health Profession. Grant Number: 201002003
- self-face recognition;
- ultra-high risk (UHR) for psychosis
Phenomenological research indicates that disturbance of the basic sense of self may be a core phenotypic marker of schizophrenia spectrum disorders. Self-face recognition (SFR) is an experimental paradigm which can assess the basic sense of self. In this study, we used SFR to determine whether basic self-disturbance is present in the ultra-high risk (UHR) for psychosis population at the perceptual level.
Twenty-three UHR individuals and 23 healthy comparison subjects were administered the SFR task. The study consisted of a 2 × 3 × 2 design: two group levels (UHR for psychosis group and the healthy comparison group); three task levels (self-famous task, self-stranger task, famous-stranger task); and two hand levels (left hand and right hand). Threshold limit values in face recognition were analysed.
The analysis indicated effects for group (F(1, 43) = 5.197, P < 0.05) and interaction effects between group and task (F = 4.767, P < 0.05). An independent samples t-test was used to compare the threshold limit values of the same task between the two groups. For self-famous task, the threshold limit values of the UHR group were higher than those of healthy group both in the left and right hands (t = 2.734, P < 0.05; t = 2.864, P < 0.05), but no significant difference was found in self-stranger task and famous-stranger task (P > 0.05).
This SFR study indicates that basic self-disturbance is present in the UHR for psychosis at the behavioural level in comparison with a healthy comparison group.