The Correlation between a New Online Cognitive Test (the Brain Assessment) and Widely Used In-Person Neuropsychological Tests

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<jats:p>Introduction: There are several problems with standard in-person neuropsychological assessments, such as habituation, necessity of human resources, and difficulty of in-person assessment under societal conditions during the outbreak of coronavirus disease 2019. Thus, we developed an online cognitive test (the Brain Assessment [BA]). In this study, we investigated the correlation between the results of the BA and those of established neuropsychological tests. Participants and Methods: Seventy-seven elderly persons (mean 71.3 ± 5.1 years old; range 65–86; male:female = 45:32) were recruited through the internet. Correlations were evaluated between the BA and the following widely used neuropsychological tests: the mini-mental state examination (MMSE), the Raven’s colored progressive matrices (RCPM), the logical memory I and II of the Rivermead Behavioral Memory Test, the word fluency (WF) test, and the Trail-Making TestA/B. Results: We found moderate correlations between the total cognitive score of the BA and the total score of the MMSE (r = 0.433, p &#x3c; 0.001), as well as between the total BA score and the total RCPM score (r = 0.582, p &#x3c; 0.001) and time to complete the RCPM (r = 0.455, p &#x3c; 0.001). Moderate correlations were also observed between the cognitive score of the memory of words BA subtest and the LM-I (r = 0.518, p &#x3c; 0.001), the mental rotation subtest and figure drawing (r = 0.404, p &#x3c; 0.001), the logical reasoning subtest and total RCPM score (r = 0.491, p &#x3c; 0.001), and the memory of numbers and words subtests and WF (memory of numbers and total WF: r = 0.456, p &#x3c; 0.001; memory of words and total WF: r = 0.571, p &#x3c; 0.001). Discussion: We found that the BA showed moderate correlations between established neuropsychological tests for intellect, memory, visuospatial function, and frontal function. The MMSE and the RCPM reflect Spearman’s s-factor and g-factor, respectively, and thus the BA also covered both factors. Conclusion: The BA is a useful tool for assessing the cognitive function of generally healthy elderly persons. </jats:p>

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