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Titolo:
Single unit responses of human cutaneous mechanoreceptors to air-puff stimulation
Autore:
Mizobuchi, K; Kuwabara, S; Toma, S; Nakajima, Y; Ogawara, K; Hattori, T;
Indirizzi:
Chiba Univ, Sch Med, Dept Neurol, Chuo Ku, Chiba 2608670, Japan Chiba Univ Chiba Japan 2608670 ept Neurol, Chuo Ku, Chiba 2608670, Japan Chiba Univ, Sch Med, Dept Physiol, Chuo Ku, Chiba 2608670, Japan Chiba Univ Chiba Japan 2608670 pt Physiol, Chuo Ku, Chiba 2608670, Japan
Titolo Testata:
CLINICAL NEUROPHYSIOLOGY
fascicolo: 9, volume: 111, anno: 2000,
pagine: 1577 - 1581
SICI:
1388-2457(200009)111:9<1577:SUROHC>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
HUMAN GLABROUS SKIN; EVOKED SOMATOSENSORY POTENTIALS; HUMAN HAND; AFFERENTS; DEGENERATION; FINGER; SYSTEM; SCALP;
Keywords:
human; air-puff stimulation; mechanoreceptors; receptor transduction; terminal axon; microneurography;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Mizobuchi, K Chiba Univ, Sch Med, Dept Neurol, Chuo Ku, 1-8-1 Inohana, Chiba 2608670, Japan Chiba Univ 1-8-1 Inohana Chiba Japan 2608670 2608670, Japan
Citazione:
K. Mizobuchi et al., "Single unit responses of human cutaneous mechanoreceptors to air-puff stimulation", CLIN NEU, 111(9), 2000, pp. 1577-1581

Abstract

Objective: To investigate responsiveness of human cutaneous mechanoreceptor to selective tactile stimuli produced by brief air-puff stimulation. Methods: Using percutaneous microneurography, activities of single sensoryunits innervating glabrous skin of the hand were recorded, and air-puff stimuli with a short rise time (0.5 Ins), generated by a high-speed ail control system, were applied to the receptive field. Receptor activation time was estimated as the latency difference between electrically and air-puff evoked responses. Results: Thirty units were analyzed: all 4 kinds of mechanoreceptors of human glabrous skin (fast adapting type 1 [FA I, II = 7], fast adapting type [FA II, ii = 4], slowly adapting 1 [SA I, II = 5] and slowly adapting 2 [SAII, ii = 14]) were activated by air-puff stimulation. Estimated receptor activation times were 0.6-6.2 ms (mean 2.2 ms). FA II units occasionally responded twice or more to a single air-puff stimulus. Conclusions: Brief air-puffs can activate all 4 human cutaneous mechanoreceptors. and the receptor transduction time is estimated as approximately 2.0 ms. Properties of human mechanoreceptors can be studied using air-puff stimulation and microneurography. (C) 2000 Elsevier Science ireland Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 14/07/20 alle ore 12:38:13