title: Cross-cultural assessment of neuropsychological performance and electrical brain function measures: additional validation of an international brain database.
abstract: 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.
authors: Department of Psychology, Behavioral Neuroscience, University of Missouri, St. Louis, Missouri 63121, USA. Rpaul@butler.org
authors: Robert H
authors: RH
authors: Paul
authors: John
authors: J
authors: Gunstad
authors: Nicholas
authors: N
authors: Cooper
authors: Leanne M
authors: LM
authors: Williams
authors: C Richard
authors: CR
authors: Clark
authors: Ronald A
authors: RA
authors: Cohen
authors: Jeffrey J
authors: JJ
authors: Lawrence
authors: Evian
authors: E
authors: Gordon
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D001921:Brain / Q000502:physiology*; D003431:Cross-Cultural Comparison; D019992:Databases as Topic / Q000706:statistics & numerical data*; D004569:Electroencephalography / Q000379:methods; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D007391:International Cooperation; D008297:Male; D008875:Middle Aged; D009483:Neuropsychological Tests