Cogstate’s computerized battery of rapid, reliable, simple and sensitive tasks measures the cognitive domains affected by MCI and AD, namely processing speed, attention, verbal and visual learning, working memory, visual motor and executive function.
The construct validity of each test for cognitive impairment in MCI and AD as well as the sensitivity of these tests to change in cognition has been demonstrated in the scientific literature. The tests have also been shown to be valid for use in different cultures and language groups with comparative/normative data available for both clinical samples and healthy controls. Study teams wishing to measure all or a subset of these domains can choose the tests that best suit their specific research questions. Each of the tests have been utilized previously in drug trials and maintain excellent reliability across repeated testing and cross-sectional research designs.
The Detection test measures processing speed using a simple reaction time paradigm.
The Identification test measures attention using a choice reaction time paradigm.
One Card Learning Test
The One Card Learning test measures visual memory using a pattern separation paradigm.
One Back Test
The One Back test measures working memory using an n-back paradigm.
International Shopping List Test
The International Shopping List Test measures verbal learning using a word list learning paradigm.
International Shopping List Test - Delayed Recall
The International Shopping List Test – Delayed Recall measures verbal memory using a word list paradigm.
Continuous Paired Associate Learning Test
The Continuous Paired Associate Learning test measures visual memory using a paired associative learning paradigm.
Groton Maze Learning Test
The Groton Maze Learning Test measures executive function using a maze learning paradigm.
|Length:||Between 5-30 minutes
(depending on the number of tests included in the battery*)
|Data Processing and Scoring:||Automated|
|Culture and Language Neutral:||Yes|
Darby, D. G., Pietrzak, R. H., Fredrickson, J., Woodward, M., Moore, L., Fredrickson, A., … Maruff, P. (2012). Intraindividual cognitive decline using a brief computerized cognitive screening test. Alzheimer’s and Dementia, 8(2), 95–104. doi:10.1016/j.jalz.2010.12.009
De Jager, C. a, Schrijnemaekers, A.-C. M. C., Honey, T. E. M., & Budge, M. M. (2009). Detection of MCI in the clinic: evaluation of the sensitivity and specificity of a computerised test battery, the Hopkins Verbal Learning Test and the MMSE. Age and ageing, 38(4), 455–60. doi:10.1093/ageing/afp068
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Hammers, D., Spurgeon, E., Ryan, K., Persad, C., Heidebrink, J., Barbas, N., Albin, R., Frey, K., Darby , D., and Giordani, B. (2011) Reliability of Repeated Cognitive Assessment of Dementia Using a Brief Computerized Battery. American Journal of Alzheimer’s Disease and Other Dementia’s: 26 (4) 326-333.
Lim, Y. Y., Ellis, K. A., Harrington, K., Ames, D., Martins, R. N., Masters, C. L., … Group, T. A. R. (2012). Use of the CogState Brief Battery in the assessment of Alzheimer’s disease related cognitive impairment in the Australian Imaging, Biomarkers and Lifestyle (AIBL) study. Journal of Clinical and Experimental Neuropsychology, 34(4), 345–358. doi:10.1080/13803395.2011.643227
Lim, Y. Y., Ellis, K. A., Pietrzak, R. H., Ames, D., Darby, D., Harrington, K., … the AIBL Research Group, F. (2012). Stronger effect of amyloid load than APOE genotype on cognitive decline in healthy older adults. Neurology, 79(16), 1645–1652. doi:10.1212/WNL.0b013e31826e9ae6
Lim, Y. Y., Ellis, K. A., Ames, D., Darby, D., Harrington, K., Martins, R. N., … Group, A. R. (2012). Aβ amyloid, cognition, and APOE genotype in healthy older adults. Alzheimers Dementia. doi:10.1016/j.jalz.2012.07.004
Lim, Y. Y., Jaeger, J., Harrington, K., Ashwood, T., Ellis, K. A., Stoffler, A., … Maruff, P. (2013). Three-month stability of the CogState brief battery in healthy older adults, mild cognitive impairment, and Alzheimer’s disease: results from the Australian Imaging, Biomarkers, and Lifestyle-rate of change substudy (AIBL-ROCS). Archives of Clinical Neuropsychology, 28(4), 320-330. doi: 10.1093/arclin/act021
Maruff, P., Lim, Y. Y., Darby, D., Ellis, K. A., Pietrzak, R. H., Snyder P. J., Bush, A. I., Szoeke, C., Schembri, A., Ames, D., Masters, C. L., & the AIBL Research Group (2013). Clinical utility of the Cogstate brief battery in identifying cognitive impairment in mild cognitive impairment and Alzheimer’s disease. BMC Pharmacology & Toxicology, 1:30