Coupling between Cortical Potentials from Different Areas

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Science  01 Mar 1974:
Vol. 183, Issue 4127, pp. 873-875
DOI: 10.1126/science.183.4127.873


At any instant, the electroencephalogram can be classified as to (i) polarity and (ii) direction of change in polarity. This classification provides a way to measure coupling between cortical areas. The technique is simple, yet of wide potential utility for studying functional relationships between cortical areas. The results of applying this technique suggest how the potentials giving rise to the electroencephalogram may play a role in information processing in the central nervous system.