On the Use of Eye Movements in Symptom Validity Assessment of 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 (2023) On the Use of Eye Movements in Symptom Validity Assessment of Feigned Schizophrenia. Psychological Injury and Law, 16 (1). pp. 83-97. ISSN 1938-9728

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Assessing the credibility of reported mental health problems is critical in a variety of assessment situations, particularly in forensic contexts. Previous research has examined how the assessment of performance validity can be improved through the use of bio-behavioral measures (e.g., eye movements). To date, however, there is a paucity of literature on the use of eye tracking technology in assessing the validity of presented symptoms of schizophrenia, a disorder that is known to be associated with oculomotor abnormalities. Thus, we collected eye tracking data from 83 healthy individuals during the completion of the Inventory of Problems – 29 and investigated whether the oculomotor behavior of participants instructed to feign schizophrenia would differ from those of control participants asked to respond honestly. Results showed that feigners had a longer dwell time and a greater number of fixations in the feigning-keyed response options, regardless of whether they eventually endorsed those options (d > 0.80). Implications on how eye tracking technology can deepen comprehension on simulation strategies are discussed, as well as the potential of investigating eye movements to advance the field of symptom validity assessment.

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Journal Article
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Psychological Injury and Law
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Deposited On:
07 Sep 2022 14:00
Last Modified:
19 Sep 2023 02:52