Cross-cultural assessment of neuropsychological performance and electrical brain function measures: additional validation of an international brain database

Int J Neurosci. 2007 Apr;117(4):549-68. doi: 10.1080/00207450600773665.

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.

Publication types

  • Comparative Study
  • Validation Study

MeSH terms

  • Adolescent
  • Adult
  • Age Factors
  • Aged
  • Aged, 80 and over
  • Brain / physiology*
  • Cross-Cultural Comparison*
  • Databases as Topic / statistics & numerical data*
  • Electroencephalography / methods
  • Evaluation Studies as Topic
  • Female
  • Humans
  • International Cooperation*
  • Male
  • Middle Aged
  • Neuropsychological Tests*