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Titolo:
EFFECTS OF SLEEP ON SOMATOSENSORY-EVOKED RESPONSES IN HUMAN - A MAGNETOENCEPHALOGRAPHIC STUDY
Autore:
KITAMURA Y; KAKIGI R; HOSHIYAMA M; KOYAMA S; NAKAMURA A;
Indirizzi:
NATL INST PHYSIOL SCI,DEPT INTEGRAT PHYSIOL OKAZAKI AICHI 444 JAPAN NATL INST PHYSIOL SCI,DEPT INTEGRAT PHYSIOL OKAZAKI AICHI 444 JAPAN NATL CTR LONGEV SCI OBU 474 JAPAN
Titolo Testata:
Cognitive brain research
fascicolo: 4, volume: 4, anno: 1996,
pagine: 275 - 279
SICI:
0926-6410(1996)4:4<275:EOSOSR>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
MEDIAN NERVE-STIMULATION; MAGNETIC-FIELDS; CORTEX; POTENTIALS; COMPONENT;
Keywords:
MAGNETOENCEPHALOGRAPHY (MEG); SLEEP; SOMATOSENSORY EVOKED RESPONSE; PRIMARY SENSORY CORTEX; 2ND SENSORY CORTEX;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
29
Recensione:
Indirizzi per estratti:
Citazione:
Y. Kitamura et al., "EFFECTS OF SLEEP ON SOMATOSENSORY-EVOKED RESPONSES IN HUMAN - A MAGNETOENCEPHALOGRAPHIC STUDY", Cognitive brain research, 4(4), 1996, pp. 275-279

Abstract

We studied the effects of sleep on somatosensory evoked magnetic fields (SEFs) following median nerve stimulation in normal subjects, to investigate the changes of functional processing of sensory perception in the primary and second sensory cortices (SI and SII). The early components, 1M, 2M and 3M, which were generated in SI contralateral to thestimulated nerve, showed no significant change of latency or amplitude in stage 1 or 2 as compared with those in the awake state. The long-latency response, 4M whose latency was about 100 ms, was significantlyenhanced in stage 2. The 4M was considered to be generated in SI and SII in the awake state, but the enhanced 4M in stage 2 was restricted in SI. The 4M(I) generated in SII of the hemisphere ipsilateral to thestimulated nerve, corresponding to 4M in the contralateral hemisphere, was absent during sleep. These findings were probably due to the difference of activities between SI and SII during sleep, that is, an increase of sensitivity to somatosensory stimulation in SI but a decreaseor disappearance in SII.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 10/07/20 alle ore 16:00:34