A short review of alpha activity in cognitive processes and in cognitive impairment


International Journal of Psychophysiology, vol.86, no.1, pp.25-38, 2012 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Review
  • Volume: 86 Issue: 1
  • Publication Date: 2012
  • Doi Number: 10.1016/j.ijpsycho.2012.07.001
  • Journal Name: International Journal of Psychophysiology
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Social Sciences Citation Index (SSCI), Scopus
  • Page Numbers: pp.25-38
  • Keywords: EEG, Alpha, Evoked alpha, Event related alpha, Event related oscillations, Memory, Cognitive impairment, Emotion, Pre-stimulus alpha, Alzheimer's disease, Bipolar disorder, Schizophrenia, Evoked coherences, Event related coherences
  • Istanbul Medipol University Affiliated: Yes


Aim of the report: In the companion report (Başar, this volume), the physiological fundaments of alpha activity in integrative brain function are described. The present report is a review of the significant role of alpha activity in memory and cognitive processes in healthy subjects, and in cognitive impairment. The role of neurotransmitters is also described, briefly, in this context. Towards an understanding of brain alpha: Despite numerous experimental studies, it is indicated that the presented results are only appropriate to establish an ensemble of reasonings and suggestions for analyzing "alphas" in the whole brain. In turn, in the near future, these reasonings and suggestions may serve (or are indispensable to serve) as fundaments of more general and tenable hypotheses on the genesis and function of "alphas". © 2012 Elsevier B.V.