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Web-based cognitive screening in bipolar disorder: validation of the Internet-based Cognitive Assessment Tool in
Jeff Zarp1,2,3, Caroline Fussing Bruun1,4, Sille Tørring Christiansen1,2,3
1Copenhagen Affective Disorder Research Centre (CADIC), Psychiatric Centre Copenhagen, Copenhagen University Hospital - Mental Health Services CPH, Copenhagen, Denmark.
Nordic Journal of Psychiatry
|December 1, 2024
Summary
The Internet-based Cognitive Assessment Tool (ICAT) effectively screens for cognitive impairments in bipolar disorder (BD) patients during remission. This digital tool offers a valid and accessible method for remote monitoring and early detection of cognitive deficits.
Area of Science:
- Neuroscience
- Psychiatry
- Digital Health
Background:
- Cognitive impairments are common in bipolar disorder (BD) patients even during remission.
- Traditional cognitive screening tools are often time-consuming and resource-intensive.
- Digital, web-based tools can improve the detection and monitoring of cognitive deficits.
Purpose of the Study:
- To evaluate the psychometric properties of the Internet-based Cognitive Assessment Tool (ICAT).
- To assess the feasibility of self-administering ICAT in home-based settings for remitted BD patients.
- To compare ICAT performance with a standard in-clinic cognitive assessment tool.
Main Methods:
- A cross-sectional study involving 31 remitted BD outpatients and 29 healthy controls (HC).
- Participants completed the Screen for Cognitive Impairment in Psychiatry (SCIP) in-clinic and ICAT at-home.
- Psychometric properties, including concurrent validity, were analyzed.
Main Results:
- A strong positive correlation was found between at-home ICAT and in-clinic SCIP total scores in BD patients (r=0.66, p<0.001).
- Moderate correlations were observed between ICAT and SCIP subtest scores across the sample (r=0.29-0.61, p≤0.03), excluding executive functions.
- No significant performance differences were found between BD patients and HC on either tool.
Conclusions:
- ICAT is a valid and feasible online tool for remote cognitive screening in remitted BD patients.
- Web-based screening offers an accessible and efficient approach for systematic cognitive assessment in BD.
- ICAT facilitates early detection and monitoring of cognitive impairments in BD.

