Microelectrode studies of the electrical activity of the cerebral cortex in the cat*

Li, Choh-Luh; Jasper, Herbert H.

doi:10.1113/jphysiol.1953.sp004935

Cited by 244 publications

(49 citation statements)

References 14 publications

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“…The records obtained with a micro-electrode from cats only show that cyclical activity of type-B neurones is occurring at two mean frequencies; there is no indication that the relatively slow oscillatory potential represents a complete discharge of the somata of these neurones. The greater part of the slow potential waves that are recorded may be a contribution from synaptic potentials (Eccles, 1953) similar to that postulated by Li & Jasper (1953) in their discussion of unit activity within the intact cerebral cortex. So far as the phases of potential change described in Fig.…”

Section: The Properties Of a Network Of Model Neuronesmentioning

confidence: 75%

The mechanism of after‐bursts in cerebral cortex

Burns¹

1955

The Journal of Physiology

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Section: The Properties Of a Network Of Model Neuronesmentioning

confidence: 75%

The mechanism of after‐bursts in cerebral cortex

Burns¹

1955

The Journal of Physiology

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“…This activity appears in the records as spikes of about 1 msec duration, and is predominantly either negative, positivenegative or positive in electrical sign. The discharge of these three varieties of spikes can be elicited by afferent volleys, and are believed to be generated from the cell bodies of cortical neurones (Amassian & Thomas, 1952;Li, McLennan & Jasper, 1952;Baumgarten & Jung, 1952;Amassian, 1953;Li & Jasper, 1953;Buser & Albe-Fessard, 1953;Tasaki, Polley & Orrego, 1954). However, it must be borne in mind that the recording of these spike potentials is carried out by blind searching of the microelectrode in the depth of the cortex.…”

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confidence: 99%

Action and resting potentials of cortical neurones

Li¹

1955

The Journal of Physiology

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“…These data demand careful attention to the biophysical possibilities for neuronal coupling by other than classical synaptic mechanisms. Regardless of the mechanism underlying these relationships between extracellular potentials and unit activity, there is an inescapable implication that the linkage between unit firing and local slow potentials depends critically upon the state of the organism and the specific behavioral operation being performed.It is clear that use of anesthetic agents alters not only the behavioral capacity of the organism, but also the relationship between unit activity and slow potentials (e.g., Li and Jasper, 1953). Even the use of unanesthetized, paralyzed animals is not likely to escape this problem, since uncontrollable shifts in arousal level and attention occur in such preparations.…”

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confidence: 99%

“…It is clear that use of anesthetic agents alters not only the behavioral capacity of the organism, but also the relationship between unit activity and slow potentials (e.g., Li and Jasper, 1953). Even the use of unanesthetized, paralyzed animals is not likely to escape this problem, since uncontrollable shifts in arousal level and attention occur in such preparations.…”

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confidence: 99%

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Average evoked potentials: Methods, results, and evaluations.

Donchin

Lindsley²

1969

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to discuss current problems in the study of average evoked potential. As can be seen from %he list of participants, most laboratories, in &his country and abroad, thak aotively use signal-averaging techniques in processing electroencephalographic records were represented at the conference. Our objective in organizing this conference was to provide a forum for discussing the problems involved in conducting these gtudies and in communicating the results of experiments.For this purpose, the conference was organized in the following format. Six investigators were invited to prepare critical reviews of the literature-each on one of six assigned topics. The reviews mere made available to all the conference participants 4 to 6 weeks before the conference. Each review was to serve as the text for one &hour session at the conference. The reviewer was allotted 20 minutes to restate some of the main points presented in ahis paper; then discussion was opened to all participants. The discussions were moderated in each case by an assigned discussant.Chapters 2 through 7 present the review papers and the ensuing discussion. The remarks made by the reviewer were deleted since their substance is presented in the review.All the principal speakers completed their assignment on time, and the reviews were sent to the participants. However Dr. Vaughan's report, as included in this volume, is substantially differen6 from the document that he circulated to the participants. For this reason, the discussants ignore much of the material presented in his present chapter.I n addition to the working sessions of the conference, two evening sessions featured extended presentations. I n the first one, Dr. Lindsley surveyed the evoked potential technique, its history, and achievements; in the second one, Dr. Frank Morrell discussed the neurophysiological mechanisms underlying the average evoked response. Dr. Lindsley's talk provided the material for Chapter 1. A supplement contains m IV FOREWORD reports that were submitted by participants to expand and elaborate upon some of the comments they made in the discussion.The conference would not have been possible without the support of the O5ce of Space Science and Applications, NASA Headquarters and Dr. Orr Reynolds. Dr. Norman Weissman of NASA Headquarters was instrumental in providing support, both in the organization of the conference and in the publication of the Proceedings. His patience and understanding are deeply appreciated. Ames Research Center, where at the time I held a National Research Council Resident Research Associateship, provided much necessary help. Dr. Jorge Huertas was especially considerate. The organization of the conference down to the last detail was in the very capable hands of Mrs. Mary-Frances Thompson of the American Institute of Biological Sciences. Special thanks are due her for the magnificent job she has done.Since we have deleted all the chairman's non-technical remarks, the Proceedings fail to underline the able chairmanship provided by Dr. D. B. Lindsley, who ran...

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Microelectrode studies of the electrical activity of the cerebral cortex in the cat*

Cited by 244 publications

References 14 publications

The mechanism of after‐bursts in cerebral cortex

The mechanism of after‐bursts in cerebral cortex

Action and resting potentials of cortical neurones

Average evoked potentials: Methods, results, and evaluations.

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