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Intracranial and Extracranial Average Evoked Responses

Gastone G. Celesia, MD

Arch Neurol. 1968;19(4):430-437.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

RECENT studies of Kelly et al¹ and Celesia et al^2,3 have shown that it is possible to identify human somatosensory and auditory cortical areas by recording average evoked potentials obtained by monopolar recordings. However, these studies also pointed out the difficulties in recognizing between responses generated under the recording electrode and responses recorded by volume conduction from distant generators. Kelly et al¹ emphasized the need to demonstrate polarity reversal to assign significance to monopolar evoked responses. Nevertheless, sensory average evoked potentials obtained directly from their source may prove to be sufficiently specific in their morphology that a set of criteria could be established for their identification and separation from volume conducted events. To test this possibility, a systematic investigation of auditory average evoked responses has been carried out in cats.

The same technique of computer averaging has been extensively applied in recent years to the study . . . [Full Text PDF of this Article]

Author Affiliations
Madison, Wis

From the Department of Neurology, University of Wisconsin Medical Center, and the Veterans Administration Hospital, Madison, Wis.

Footnotes
Submitted for publication April 22, 1968; accepted June 7.

Reprint requests to Department of Neurology, VA Hospital, 2500 Overlook Terrace, Madison, Wis 53705 (Dr. Celesia).

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