The purpose of this study was to examine the preliminary validity of a newly developed battery of computerized cognitive measures, IntegNeuro. This standardized and semi-automated computerized battery assesses sensori-motor function, attention, new learning and memory, language fluency, executive function, and estimated intelligence. A total of 50 healthy individuals (aged 22-80 years) were included in the study. Correlational analyses revealed highly significant associations between the two cognitive batteries. These results support the use of IntegNeuro as a computerized cognitive system. Additional studies are needed to examine the clinical utility of the battery.
Previous studies have revealed significant differences in performance on nonlanguage dependent cognitive tests across international settings among younger individuals, with less pronounced differences evident among older individuals (>54 years of age). The present study examined a broad range of cognitive performance as well as electrophysiological indices of brain function in a multisite and international context. A total of 200 individuals in the United States, 233 individuals in Europe, and 829 individuals in Australia were administered a standardized computerized neuropsychological battery, and complementary electroencephalogram (EEG) recordings were completed. Results revealed no significant differences in cognitive function or electrophysiology across the three continents. Similarly, although there was a main effect for age, the interaction between age and continent was not significant in any of the omnibus analyses. These findings indicate a high degree of similarity in neurocognitive and electrophysiological function among individuals residing in developed Western cultures, consistent with a traitlike status and the high heritability of the EEG.
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