Psychonomic Science

, Volume 23, Issue 1, pp 99–100 | Cite as

Variation in visual input and the occipital EEG: II

  • Anthony Gale
  • Michael Coles
  • Elizabeth Boyd
Physiological Psychology Electrical Recording
  • 98 Downloads

Abstract

The resting EEG of 29 Ss is examined during exposure to five different conditions of visual stimulation: (1) eyes shut, (2) eyes open in the dark, (3) viewing a blank screen, (4) viewing a simple pattern, and (5) viewing a more complex pattern. Each condition is presented twice according to a random schedule (2 min per trial). For alpha and beta frequencies, EEG amplitude varies inversely with ascending visual complexity. For theta frequencies, this relation holds except for a reversal for Conditions 4 and 5.

References

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  2. GALE, A., DUNKIN, N., & COLES, M. Variation in visual input and the occipital EEG. Psychonomic Science, 1969, 14, 262–263.CrossRefGoogle Scholar
  3. GALE, A., CHRISTIE, B., & PENFOLD, V. Stimulus complexity and the occipital EEG. British Journal of Psychology, 1971, 62, 2.Google Scholar
  4. GENGERELLI, J. A., & PARKER, C. E. Spectographic analysis of electroencephalograms under conditions of alertness and relaxation. Journal of Psychology, 1966, 63, 67–72.PubMedCrossRefGoogle Scholar

Copyright information

© Psychonomic Journals, Inc. 1971

Authors and Affiliations

  • Anthony Gale
    • 1
  • Michael Coles
    • 1
  • Elizabeth Boyd
    • 1
  1. 1.University of ExeterExeter, DevonEngland

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