Early gamma response in human neuroelectric activity is correlated with neuropsychological test scores

Karakas S., Bekci B., Erzengin O.

NEUROSCIENCE LETTERS, cilt.340, sa.1, ss.37-40, 2003 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 340 Sayı: 1
  • Basım Tarihi: 2003
  • Doi Numarası: 10.1016/s0304-3940(03)00073-9
  • Dergi Adı: NEUROSCIENCE LETTERS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.37-40
  • Anahtar Kelimeler: gamma response, cognitive processes, memory, neuropsychological tests, event-related potentials, integrated bottom-up and top-down processing, BRAIN, NETWORKS, MEMORY
  • Acıbadem Mehmet Ali Aydınlar Üniversitesi Adresli: Hayır

Özet

The goal of this study was to investigate whether early, time-locked 'sensory' gamma band response is correlated with a set of scores derived from neuropsychological tests. Neuroelectric responses were obtained under active auditory oddball paradigm. Of 67 reportedly healthy adults, 35 displayed time-locked early gamma, G (+), and 24 did not, G (-). Out of 52 neuropsychological test scores, G (+) and G (-) groups differed on the basis of Wisconsin Card Sorting Test, Wechsler Memory Scale-Revised and Serial Digit Learning Test scores. Results of logistic regression analysis was statistically reliable (overall success rate of prediction: 93.33%). The results showed that early gamma response can be classified on the basis of neuropsychological test performance and is thus associated with higher cognitive functions, supporting the view that brain integrates bottom-up with top-down processing. (C) 2003 Elsevier Science Ireland Ltd. All rights reserved.