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This volume contains the presentations made to the conference on the electrical activity of the brain in relation to psychological phenomena held in Marseille in 1955. This symposium included participants from Russia, Poland, India, and Japan, as well as the Western world, giving it an unusually broad outlook.
For purposes of publication, the presentations have been grouped somewhat arbitrarily into three divisions; conditioning and the EEG; behavior and the EEG, and reactivity and the EEG. The first division deals not with conditioning in the classic Pavlovian sense but with the production of a specific electroencephalographic response to an indifferent stimulus by repeatedly associating the indifferent stimulus with an unconditioned EEG response. Most commonly this consisted of combining a visual stimulus (unconditioned stimulus) with an auditory stimulus (conditioned stimulus) so that, with conditioning, sound produces a diminution in alpha activity. This conditioned response occurs in two phases; in the first, "generalized"
Wells CE. Conditionnement et réactivité en électroencéphalographie. AMA Arch NeurPsych. 1958;80(1):61–62. doi:10.1001/archneurpsyc.1958.02340070079009
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