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<p>The Cogstate Brief Battery (CBB) includes four computerized cognitive tests that are commonly used to evaluate neuropsychiatric patients, particularly those who have sustained a mild traumatic brain injury (TBI). The current study assessed the CBB’s utility for detecting feigned and genuine cognitive impairment following TBI. CBB performance of TBI patients simulating cognitive impairment (TBI<sub>simulators</sub>; <i>n</i> = 24) was compared to that of presumably honest TBI patients (TBI<sub>controls</sub>; <i>n</i> = 23). The performance of the latter group was also compared with archival data of healthy controls (Healthy<sub>controls</sub>; <i>n</i> = 21). TBI<sub>simulators</sub> performed more poorly than TBI<sub>controls</sub> in three of the four CBB tasks (Detection, Identification, and One Card Learning), with failure in two or more tasks associated with 95.7% specificity and 66.7% sensitivity. Three CBB tasks, partially overlapping with the earlier mentioned tasks, differentiated TBI<sub>controls</sub> and Healthy<sub>controls</sub> (Detection, Identification, and One-back). The current study provides initial support for empirically derived CBB-based embedded validity indicators and the utility of the CBB in detecting post-TBI cognitive impairment. Considering the preliminary nature of the study, further research is encouraged.</p>

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Cogstate Brief Battery: Utility for Detecting Feigned and Genuine Cognitive Impairment Following Traumatic Brain Injury

  • 期刊论文

  • 发表日期：

    2025年8月12日

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  • Yoram Braw,
  • Tamar Lupu,
  • Yaron Sacher

摘要

The Cogstate Brief Battery (CBB) includes four computerized cognitive tests that are commonly used to evaluate neuropsychiatric patients, particularly those who have sustained a mild traumatic brain injury (TBI). The current study assessed the CBB’s utility for detecting feigned and genuine cognitive impairment following TBI. CBB performance of TBI patients simulating cognitive impairment (TBIsimulators; n = 24) was compared to that of presumably honest TBI patients (TBIcontrols; n = 23). The performance of the latter group was also compared with archival data of healthy controls (Healthycontrols; n = 21). TBIsimulators performed more poorly than TBIcontrols in three of the four CBB tasks (Detection, Identification, and One Card Learning), with failure in two or more tasks associated with 95.7% specificity and 66.7% sensitivity. Three CBB tasks, partially overlapping with the earlier mentioned tasks, differentiated TBIcontrols and Healthycontrols (Detection, Identification, and One-back). The current study provides initial support for empirically derived CBB-based embedded validity indicators and the utility of the CBB in detecting post-TBI cognitive impairment. Considering the preliminary nature of the study, further research is encouraged.