Feigned ADHD Associated Cognitive Impairment: Utility of Integrating an Eye-tracker and the MOXO-dCPT. Issue 9 (July 2022)

• Record Type: Journal Article
• Authors: Lev, Astar; Elbaum, Tomer; Berger, Corinne; Braw, Yoram
• Is Part Of: Journal of attention disorders. Volume 26:Issue 9(2022)
• Page Start: 1212
• Page End: 1222
• Publication Date: 2022-07
• Subjects: ADHD -- continuous performance test -- MOXO-dCPT -- feigned cognitive impairment -- eye tracking; Attention-deficit hyperactivity disorder -- Periodicals; Attention -- Periodicals; 616.8589
• DOI: 10.1177/10870547211063643
• Languages: English
• ISSNs: 1087-0547

Abstract

Objective: The current study assessed the utility of eye-movements measures, gathered while participants performed a commercially available Continuous Performance Test (CPT), to detect feigned ADHD-associated cognitive impairment. Method: Healthy simulators ( n = 37), ADHD patients ( n = 33), and healthy controls ( n = 36) performed an eye-tracker integrated MOXO-dCPT and a stand-alone validity indicator. Results: Simulators gazed significantly longer at regions that were irrelevant for successful MOXO-dCPT performance compared to ADHD patients and healthy controls. This eye-movement measure, however, had lower sensitivity than traditional MOXO-dCPT indices. Discussion: Gaze direction measures, gathered while performing a CPT, show initial promise as validity indicators. Traditional CPT measures, however, are more sensitive and therefore offer a more promising path for the establishment of CPT-based validity indicators. The current study is an initial exploration of the issue and further evaluation of both theoretical and practical aspects is mandated.