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Titolo:
Experimental modification of P50 suppression
Autore:
Yee, CM; White, PM;
Indirizzi:
Univ Calif Los Angeles, Dept Psychol, Los Angeles, CA 90095 USA Univ CalifLos Angeles Los Angeles CA USA 90095 Los Angeles, CA 90095 USA
Titolo Testata:
PSYCHOPHYSIOLOGY
fascicolo: 3, volume: 38, anno: 2001,
pagine: 531 - 539
SICI:
0048-5772(200105)38:3<531:EMOPS>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
REPEATED AUDITORY-STIMULI; EVOKED-RESPONSE; SCHIZOPHRENIA; MANIPULATIONS; REPLICATION; YOHIMBINE; DEFICIT; MANIA;
Keywords:
P50; sensory gating; psychological stressor; mental arithmetic task; schizophrenia;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Life Sciences
Citazioni:
29
Recensione:
Indirizzi per estratti:
Indirizzo: Yee, CM Univ Calif Los Angeles, Dept Psychol, 405 Hilgard Ave, Los Angeles, CA 90095 USA Univ Calif Los Angeles 405 Hilgard Ave Los Angeles CA USA 90095 SA
Citazione:
C.M. Yee e P.M. White, "Experimental modification of P50 suppression", PSYCHOPHYSL, 38(3), 2001, pp. 531-539

Abstract

White and Yee (1997) found that normal suppression of the P50 component ofthe event-related potential was disrupted during a paired-click paradigm when nonpsychiatric subjects performed mental arithmetic (MA) problems aloud, concurrently with the presentation of auditory stimuli. In fact, the degree of disruption reflected in the P50 suppression ratio fell within the range that is typically observed in schizophrenia patients. The present study was conducted to clarify the processes that might underlie the apparent disruption of P50 suppression during performance of an oral MA task. Participants completed a series of tasks designed to examine the impact of competingcognitive activity, competing auditory stimulation, muscle activity, and acute psychological stress on P50 amplitude and P50 suppression. Results suggested that psychological stress and heightened facial muscle activity may exert modulatory effects on P50 suppression.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/01/20 alle ore 03:19:46