Individual Differences in the Asymmetry of Alpha Activation

  • Stuart Butler
  • Alan Glass
Part of the NATO ASI Series book series (NSSA, volume 130)


Asymmetry in the distribution of the alpha rhythm first received attention during the early seventies (Morgan, McDonald and MacDonald, 1971; Galin and Ornstein, 1972a & b; Glass and Butler, 1973; Butler and Glass, 1974). The effect was attributed to the activation of lateralised mechanisms serving language and ‘visuospatial’ functions and was therefore perceived as a non-invasive method of investigating hemispheric specialisation. It has recently become clear that alpha asymmetry varies systematically as a function of gender and handedness. In this chapter we shall consider the significance of this variation in terms of individual differences in the structural and dynamic aspects of hemispheric specialisation.


Left Hemisphere Cognitive Style Mental Arithmetic Clinical Neurophysiology Asymmetry Index 
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Copyright information

© Plenum Press, New York 1987

Authors and Affiliations

  • Stuart Butler
    • 1
  • Alan Glass
    • 1
  1. 1.Department of AnatomyThe Medical SchoolBirminghamUK

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