Acoustically‐evoked potentials in man: Mediation of early components

Ruhm, Howard B.; Walker, E. G.; Flanigin, Herman F.

doi:10.1288/00005537-196705000-00009

Cited by 78 publications

(16 citation statements)

References 2 publications

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“…An impoptant question is whether we see short latency components whose distribution suggests that they am generated in primary sensory corrtex as we do in the somatic system. We might expect the foci b be in the temporal areas; however, recent evidence indicates that short-latency cerebral A E P components are recorded clearly from the vertex region (Mast, 1965 ;Ruhm et al, 1967 ;Celesia et al, 1968). region as expected since they comprise the negative-positive peak of the AER vertex potential.…”

Section: Aveeaoe Evoked Potentfalsmentioning

confidence: 72%

“…DR. RUHM : Our experience with cortical recordings has suggested that evoked responses exhibit as much variability at the cortex of man as at the scalp. Therefore, we cannot attribute such variance to electrode placement or to the dist.ances between neural material and the electrodes (Ruhm, Walker, and Flanigin;.…”

Section: Secmentioning

confidence: 99%

“…Recently, however, Ruhm et al (1967) compared early AER components from the scalp and cortex. The latencies and waveforms of their responses compared favorably to those we record as AER P2a and P3a.…”

Section: Ser P2amentioning

confidence: 99%

“…They tend to habituate but may be significant in (the naive or anxious subject or at the beginning of an experimental session. On the other hand, comparisons of evoked potentials recorded from the scalp and directly from the cortex in the auditory (Ruhm et al, 1967 ;Glesia et ad., 1968), visual (Gastaut, 1949 ;H i m h et al, 1961 ;Rayport et al, 1964;Corletto et al, 1967), and somatic (Jasper et al, 1960;Domino et al, 1964Domino et al, , 1965Kelly et al, 1965; systems have established that many scalp-recorded A E P components are faithful representations of neuroelectric potentials occurring at the cortical surface except for amplitude attenuation.…”

mentioning

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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Section: Aveeaoe Evoked Potentfalsmentioning

confidence: 72%

Section: Secmentioning

confidence: 99%

Section: Ser P2amentioning

confidence: 99%

mentioning

confidence: 99%

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Average evoked potentials: Methods, results, and evaluations.

Donchin

Lindsley²

1969

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“…[2][3][4][5] Myogenic contamination initially caused much debate about MLR generators, [24][25] which led to many studies until the neurogenic origin of these potentials was demonstrated. 26,28 It is currently known that myogenic responses of the scalp and neck muscles may be elicited by strong acoustic stimuli and/or by difficulties in relaxing the muscles during the test.…”

Section: Discussionmentioning

confidence: 99%

Do estudo dos potenciais de média latência eliciados por logon em sujeitos do sexo feminino com audição normal

Fukushima¹,

Castro²

2007

Rev. Bras. Otorrinolaringol.

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Os potenciais de média latência são potenciais auditivos que ocorrem entre 10ms a 80ms, formados por ondas polifásicas positivas e negativas denominadas de N0, P0, Na, Pa, Nb e Pb. O logon é um estímulo acústico que permite eliciar respostas de média latência ativando regiões específicas da cóclea. Sua vantagem sobre o clique é a possibilidade avaliar as áreas de baixa freqüência (abaixo de 1kHz). OBJETIVO: O objetivo deste trabalho foi verificar a resposta eletrofisiológica das MLR estimulados por logon nas freqüências de 500, 1000 e 2000 Hz. CASUÍSTICA E MÉTODO: Forma de estudo prospectivo e descritivo de uma amostra de 14 voluntárias do sexo feminino, normais dos pontos de vista otológico e audiológico convencional. O estímulo foi monoaural e ipsilateral à derivação de captação dos potenciais (Cz/A1-2). RESULTADOS: O complexo NaPa foi o mais facilmente identificado e esteve presente em 100% dos exames realizados a 2000 Hz e em 96,4% a 500 e 1000 Hz. CONCLUSÕES: As MLR podem se eliciadas pelo logon nas freqüências de 500, 1000 e 2000 Hz; o complexo NaPa foi o evento prevalente das MLR e o estímulo logon a 2000 Hz eliciou maior número de respostas do que as outras freqüências.

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Extracranial auditory responses from the base of the skull

Clark¹,

Dunlop²

1970

The Laryngoscope

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Acoustically‐evoked potentials in man: Mediation of early components

Cited by 78 publications

References 2 publications

Average evoked potentials: Methods, results, and evaluations.

Average evoked potentials: Methods, results, and evaluations.

Do estudo dos potenciais de média latência eliciados por logon em sujeitos do sexo feminino com audição normal

Extracranial auditory responses from the base of the skull

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