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Titolo:
A double dissociation in the affective modulation of startle in humans: Effects of unilateral temporal lobectomy
Autore:
Funayama, ES; Grillon, C; Davis, M; Phelps, EA;
Indirizzi:
NYU, Dept Psychol, New York, NY 10003 USA NYU New York NY USA 10003NYU, Dept Psychol, New York, NY 10003 USA Gallaudet Univ, Washington, DC 20002 USA Gallaudet Univ Washington DC USA20002 det Univ, Washington, DC 20002 USA Yale Univ, Sch Med, New Haven, CT 06520 USA Yale Univ New Haven CT USA 06520 e Univ, Sch Med, New Haven, CT 06520 USA Emory Univ, Sch Med, Atlanta, GA 30322 USA Emory Univ Atlanta GA USA 30322 mory Univ, Sch Med, Atlanta, GA 30322 USA
Titolo Testata:
JOURNAL OF COGNITIVE NEUROSCIENCE
fascicolo: 6, volume: 13, anno: 2001,
pagine: 721 - 729
SICI:
0898-929X(20010815)13:6<721:ADDITA>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
HUMAN AMYGDALA ACTIVATION; FEAR-POTENTIATED STARTLE; ANTICIPATORY ANXIETY; EMOTION; REFLEX; ATTENTION; EPILEPSY; PROBES; BLINK; FMRI;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
42
Recensione:
Indirizzi per estratti:
Indirizzo: Phelps, EA NYU, Dept Psychol, 6 Washington Pl,8th Floor, New York, NY 10003 USA NYU 6 Washington Pl,8th Floor New York NY USA 10003 Y 10003 USA
Citazione:
E.S. Funayama et al., "A double dissociation in the affective modulation of startle in humans: Effects of unilateral temporal lobectomy", J COGN NEUR, 13(6), 2001, pp. 721-729

Abstract

In the present study we report a double dissociation between right and left medial temporal lobe damage in the modulation of fear responses to different types of stimuli. We found that right unilateral temporal lobectomy (RTL) patients, in contrast to control subjects and left temporal lobectomy (LTL) patients, failed to show potentiated startle while viewing negative pictures. However, the opposite pattern of impairment was observed during a stimulus that patients had been told signaled the possibility of shock, Control subjects and RTL patients showed potentiated startle while LTL patients failed to show potentiated startle. We hypothesize that the right medial temporal lobe modulates fear responses while viewing emotional pictures, which involves exposure to (emotional) visual information and is consistent with the emotional processing traditionally ascribed to the right hemisphere. In contrast, the left medial temporal lobe modulates fear responses when those responses are the result of a linguistic/cognitive representation acquired through language. which, like other verbally mediated material, generally involves the left hemisphere. Additional evidence from case studies suggests that. within the medial temporal lobe, the amygdala is responsible forthis modulation.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/04/20 alle ore 18:14:39