The effect of aging on spectral parameters of event-related potentials

Yargicoglu P., Agar A., Oguz Y.

INTERNATIONAL JOURNAL OF NEUROSCIENCE, cilt.83, sa.1-2, ss.135-143, 1995 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 83 Sayı: 1-2
  • Basım Tarihi: 1995
  • Doi Numarası: 10.3109/00207459508986333
  • Dergi Adı: INTERNATIONAL JOURNAL OF NEUROSCIENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.135-143
  • Anahtar Kelimeler: event-related potentials, P-3 (P-300), decision-making, aging, visual, spectral analysis, AGE-RELATED-CHANGES, SOMATOSENSORY STIMULI, EVOKED-POTENTIALS, P300, LATENCY, EEG, COMPONENT, EPILEPSY, DEMENTIA, ACETYLCHOLINE
  • Akdeniz Üniversitesi Adresli: Evet

Özet

Forty-two healthy subjects ranging in age from 20 to 73 were divided into three groups according to age; a young group (20-33 years), a middle-aged group (34-49 years) and older group (50-73 years). Event-related potentials (ERPs) of three groups were recorded in two different experimental conditions that the infrequent stimulus was counted (Test 1) or uncounted (Test 2). ERPs were elicited using infrequent and frequent stimuli as red and green lights respectively. Spectral analysis of ERPs showed that decibel (dB) values of 1-2 and 3-4 Hz in young and middle-aged groups while dB value of 1-2 Hz in older group were significantly decreased in Test 2 compared with Test 1. When the number of subjects displaying amplitude maximum in each frequency band was considered, significant differences were found in 1-2 and 5-7 Hz frequency bands of young and middle-aged groups, but no significant differences were found for older group.