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Titolo:
Somatosensory input to auditory association cortex in the macaque monkey
Autore:
Schroeder, CE; Lindsley, RW; Specht, C; Marcovici, A; Smiley, JF; Javitt, DC;
Indirizzi:
Nathan S Kline Inst Psychiat Res, Cognit Neurosci & Schizophrenia Program,Orangeburg, NY 10962 USA Nathan S Kline Inst Psychiat Res Orangeburg NY USA 10962 rg, NY 10962 USA Yeshiva Univ Albert Einstein Coll Med, Dept Neurosurg, Bronx, NY 10461 USAYeshiva Univ Albert Einstein Coll Med Bronx NY USA 10461 nx, NY 10461 USA Yeshiva Univ Albert Einstein Coll Med, Dept Neurol, Bronx, NY 10461 USA Yeshiva Univ Albert Einstein Coll Med Bronx NY USA 10461 nx, NY 10461 USA NYU, Med Ctr, Dept Psychiat, New York, NY 10003 USA NYU New York NY USA 10003 Med Ctr, Dept Psychiat, New York, NY 10003 USA
Titolo Testata:
JOURNAL OF NEUROPHYSIOLOGY
fascicolo: 3, volume: 85, anno: 2001,
pagine: 1322 - 1327
SICI:
0022-3077(200103)85:3<1322:SITAAC>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
SUPERIOR TEMPORAL SULCUS; SOURCE-DENSITY ANALYSIS; RESPONSE PROPERTIES; RHESUS-MONKEY; AWAKE MONKEY; TONOTOPIC ORGANIZATION; CORTICAL CONNECTIONS; ANURAN CEREBELLUM; SINGLE NEURONS; FIELDS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
37
Recensione:
Indirizzi per estratti:
Indirizzo: Schroeder, CE Nathan S Kline Inst Psychiat Res, Cognit Neurosci & Schizophrenia Program,140 Old Orangeburg Rd,Bldg 37, Orangeburg, NY 10962 USA Nathan S Kline Inst Psychiat Res 140 Old Orangeburg Rd,Bldg 37 Orangeburg NY USA10962
Citazione:
C.E. Schroeder et al., "Somatosensory input to auditory association cortex in the macaque monkey", J NEUROPHYS, 85(3), 2001, pp. 1322-1327

Abstract

We investigated the convergence of somatosensory and auditory inputs in within subregions of macaque auditory cortex. Laminar current source density and multiunit activity profiles were sampled with linear array multielectrodes during penetrations of the posterior superior temporal plane in three macaque monkeys. At each recording site, auditory responses to binaural clicks, pure tones, and band-passed noise, all presented by earphones, were compared with somatosensory responses evoked by contralateral median nerve stimulation. Subjects were awake but were not required to discriminate the stimuli. Borders between A1 and surrounding belt regions were identified by mapping best frequency and stimulus preferences and by subsequent histological analysis. Regions immediately caudomedial to A1 had robust somatosensory responses corepresented with auditory responses. In these regions, both somatosensory and auditory response profiles had "feedforward" patterns; initial excitation beginning in Lamina 4 and spreading to extragranular laminae. Auditory and somatosensory responses displayed a high degree of temporal overlap. Anatomical reconstruction indicated that the somatosensory input region includes, but may not be restricted to, the caudomedial auditory association cortex. As was earlier reported for this region, auditory frequency tuning curves were broad and band-passed noise responses were larger than pure tone responses. No somatosensory responses were observed in A1. These findings suggest a potential neural substrate for multisensory integration at an early stage of auditory cortical processing.

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Documento generato il 08/04/20 alle ore 09:14:08