An Eye Tracking Study on Feigned Schizophrenia

Ales, Francesca and Giromini, Luciano and Warmelink, Lara and Polden, Megan and Wilcockson, Thomas and Kelly, Claire and Winters, Christina and Zennaro, Alessandro and Crawford, Trevor (2021) An Eye Tracking Study on Feigned Schizophrenia. Psychological Injury and Law. ISSN 1938-9728

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Abstract

Research on malingering detection has not yet taken full advantage of eye tracking technology. In particular, while several studies indicate that patients with schizophrenia behave notably differently from controls on specific oculomotor tasks, no study has yet investigated whether experimental participants instructed to feign could reproduce those behaviors, if coached to do so. Due to the automatic nature of eye movements, we anticipated that eye tracking analyses would help detect feigned schizophrenic problems. To test this hypothesis, we recorded the eye movements of 83 adult UK volunteers, and tested whether eye movements of healthy volunteers instructed to feign schizophrenia (n = 43) would differ from those of honest controls (n = 40), while engaging in smooth pursuit and pro- and anti-saccade tasks. Additionally, results from our investigation were also compared against previously published data observed in patients with schizophrenia performing similar oculomotor tasks. Data analysis showed that eye movements of experimental participants instructed to feign (a) only partially differed from those of controls and (b) did not closely resemble those from patients with schizophrenia reported in previously published papers. Taken together, these results suggest that examination of eye movements does have the potential to help detecting feigned schizophrenia.

Item Type:
Journal Article
Journal or Publication Title:
Psychological Injury and Law
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3300/3308
Subjects:
ID Code:
158465
Deposited By:
Deposited On:
16 Aug 2021 09:50
Refereed?:
Yes
Published?:
Published
Last Modified:
18 Oct 2021 05:13