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Titolo:
HUMAN OSCILLATORY BRAIN ACTIVITY NEAR 40 HZ COEXISTS WITH COGNITIVE TEMPORAL BINDING
Autore:
JOLIOT M; RIBARY U; LLINAS R;
Indirizzi:
NYU,MED CTR,CTR NEUROMAGNETISM,DEPT PHYSIOL & BIOPHYS,550 1ST AVE NEWYORK NY 10016 NYU,MED CTR,CTR NEUROMAGNETISM,DEPT PHYSIOL & BIOPHYS NEW YORK NY 10016 CEA,DEPT RECH IMAGERIE PHARMACOL & PHYSIOL,SERV HOSP FREDERIC JOLIOT ORSAY FRANCE
Titolo Testata:
Proceedings of the National Academy of Sciences of the United Statesof America
fascicolo: 24, volume: 91, anno: 1994,
pagine: 11748 - 11751
SICI:
0027-8424(1994)91:24<11748:HOBAN4>2.0.ZU;2-G
Fonte:
ISI
Lingua:
ENG
Soggetto:
NEURONAL OSCILLATIONS; VISUAL-CORTEX; CAT;
Keywords:
COGNITION; PERCEPTION; AUDITORY SYSTEM; MAGNETOENCEPHALOGRAPHY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
26
Recensione:
Indirizzi per estratti:
Citazione:
M. Joliot et al., "HUMAN OSCILLATORY BRAIN ACTIVITY NEAR 40 HZ COEXISTS WITH COGNITIVE TEMPORAL BINDING", Proceedings of the National Academy of Sciences of the United Statesof America, 91(24), 1994, pp. 11748-11751

Abstract

Spontaneous oscillatory electrical activity at a frequency near 40 Hzin the human brain and its reset by sensory stimulation have been proposed to be related to cognitive processing and to the temporal binding of sensory stimuli. These experiments were designed to test this hypothesis and to determine specifically whether the minimal interval required to identify separate auditory stimuli correlates with the reset of the 40-Hz magnetic signal. Auditory clicks were presented at varying times, while magnetic activity was recorded from awake human subjects. Experimental and modeling results indicate a stimulus-interval-dependent response with a critical interval of 12-15 ms. At shorter intervals only one 40-Hz response, to the first stimulus, was observed. Withlonger intervals, a second 40-Hz wave abruptly appeared, which coincided with the subject's perception of a second distinct auditory stimulus. These results indicate that oscillatory activity near 40 Hz represents a neurophysiological correlate to the temporal professing of auditory stimuli. It also supports the view that 40-Hz activity not only relates to primary sensory processing, but also could reflect the temporal binding underlying cognition.

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Documento generato il 12/07/20 alle ore 03:24:47