Related Experiment Video
Updated: Jun 29, 2026
Dynamic Digital Biomarkers of Motor and Cognitive Function in Parkinson's Disease
Published on: July 24, 2019
Predictive value of the Clock Drawing Test. A review of the literature
Ruth Peters1, Elisabete M Pinto
1Care of the Elderly, Imperial College Faculty of Medicine, Hammersmith Campus, London, UK. r.peters@imperial.ac.uk
Background/Aims:
The Clock Drawing Test (CDT) assesses cognition focusing on executive function and praxis in contrast to the more language-based Mini-Mental State Exam. The CDT may allow early identification of cognitive decline.
Methods:
A systematic review of the literature was used to identify studies that had used the CDT to predict future cognitive impairment.
Results:
Five studies were found with the CDT as a predictor. The data were too disparate for meta-analytic techniques.
Conclusion:
The CDT may be a useful tool to identify decline before more traditional screening tests; however, further studies are needed as the data are sparse and heterogeneous.
