Self-face recognition in the ultra-high risk for psychosis population

Authors

  • HongXiao Jia,

    Corresponding author
    1. Beijing Anding Hospital, Capital Medical University, Beijing, China
    2. State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing, China
    • Corresponding author: Professor HongXiao Jia, Beijing Anding Hospital, Capital Medical University, Room 102, Xingzheng Building, 5th Ankanghutong, Deshengmenwai Street, Xicheng District, Beijing 100088, China. Email: jhxlj@ccmu.edu.cn

      Co-corresponding author: Dr. Nelson Barnaby, Orygen Youth Health Research Centre, Centre for Youth Mental Health, University of Melbourne, Melbourne, Victoria, Australia. Email: nelsonb@unimelb.edu.au

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  • JingMing Yang,

    1. Beijing Anding Hospital, Capital Medical University, Beijing, China
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  • Hong Zhu,

    1. Beijing Anding Hospital, Capital Medical University, Beijing, China
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  • Jia Liu,

    1. State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing, China
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  • Nelson Barnaby

    Corresponding author
    1. Orygen Youth Health Research Centre, Centre for Youth Mental Health, University of Melbourne, Melbourne, Victoria, Australia
    • Corresponding author: Professor HongXiao Jia, Beijing Anding Hospital, Capital Medical University, Room 102, Xingzheng Building, 5th Ankanghutong, Deshengmenwai Street, Xicheng District, Beijing 100088, China. Email: jhxlj@ccmu.edu.cn

      Co-corresponding author: Dr. Nelson Barnaby, Orygen Youth Health Research Centre, Centre for Youth Mental Health, University of Melbourne, Melbourne, Victoria, Australia. Email: nelsonb@unimelb.edu.au

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Abstract

Aim

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.

Methods

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.

Results

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).

Conclusions

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.

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