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Comparing Cognitive Tests and Smartphone-Based Assessment in 2 US Community-Based Cohorts
Ileana De Anda-Duran1, Preeti Sunderaraman2,3,4, Edward Searls5
1Department of Epidemiology Tulane University School of Public Health and Tropical Medicine New Orleans LA USA.
Smartphone cognitive tests show validity against traditional assessments. These digital tools can help screen cognition in diverse populations, improving accessibility in Alzheimer disease and dementia research.
Area of Science:
- Neuroscience
- Digital Health
- Cognitive Science
Background:
- Smartphone cognitive assessments offer accessible, less biased alternatives for Alzheimer disease and related dementia research.
- Their alignment with traditional neuropsychological tests and utility in diverse groups require further investigation.
Purpose of the Study:
- To evaluate the congruence of smartphone-based cognitive assessments with traditional neuropsychological tests.
- To explore the use of digital assessments in diverse populations for cognitive screening.
Main Methods:
- 406 participants from Framingham Heart Study (FHS) and 59 from Bogalusa Heart Study (BHS) underwent traditional neuropsychological tests and the Defense Automated Neurocognitive Assessment (DANA) smartphone protocol.
- Regression models analyzed associations between DANA digital measures and global/domain-specific cognitive scores (GCS).
Main Results:
- Participants with lower traditional cognitive scores (GCS1) showed lower DANA digital scores, including slower response times and reduced cognitive efficiency.
- In both cohorts, higher global cognitive scores (GCS) correlated with faster DANA response times and increased cognitive efficiency, particularly in the Code Substitution task.
Conclusions:
- Smartphone-based cognitive assessments demonstrate concurrent validity with traditional neuropsychological tests.
- These findings support the use of digital assessments for cognitive screening in diverse, community-dwelling populations.
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