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Titolo:
Linguistic threat activates the human amygdala
Autore:
Isenberg, N; Silbersweig, D; Engelien, A; Emmerich, S; Malavade, K; Beattie, B; Leon, AC; Stern, E;
Indirizzi:
JFK Med Ctr, New Jersey Neurosci Inst, Edison, NJ 08818 USA JFK Med Ctr Edison NJ USA 08818 ersey Neurosci Inst, Edison, NJ 08818 USA Cornell Univ, Weill Med Coll, Dept Psychiat, Funct Neuroimaging Lab, New York, NY 10021 USA Cornell Univ New York NY USA 10021 uroimaging Lab, New York, NY 10021 USA
Titolo Testata:
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
fascicolo: 18, volume: 96, anno: 1999,
pagine: 10456 - 10459
SICI:
0027-8424(19990831)96:18<10456:LTATHA>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
EMOTIONAL FACIAL EXPRESSIONS; TEMPORAL-LOBE; FEAR; RECOGNITION; CORTEX; FACES; HIPPOCAMPAL; PROJECTIONS; LESIONS; NUCLEUS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
38
Recensione:
Indirizzi per estratti:
Indirizzo: Isenberg, N JFK Med Ctr, New Jersey Neurosci Inst, POB 3059,65 James St, Edison, NJ 08818 USA JFK Med Ctr POB 3059,65 James St Edison NJ USA 08818 08818 USA
Citazione:
N. Isenberg et al., "Linguistic threat activates the human amygdala", P NAS US, 96(18), 1999, pp. 10456-10459

Abstract

Studies in animals demonstrate a crucial role for the amygdala in emotional and social behavior, especially as related to fear and aggression. Whereas lesion and functional-imaging studies in humans indicate the amygdala's participation in assessing the significance of nonverbal as well as paralinguistic cues, direct evidence for its role in the emotional processing of linguistic cues is lacking. In this study, we use a modified Stroop task along with a high-sensitivity neuroimaging technique to target the neural substrate engaged specifically when processing linguistic threat. Healthy volunteer subjects were instructed to name the color of words of either threat orneutral valence, presented in different color fonts, while neural activitywas measured by using (H2O)-O-15 positron-emission tomography, Bilateral amygdalar activation was significantly greater during color naming of threatwords than during color naming of neutral words. Associated activations were also noted in sensory-evaluative and motor-planning areas of the brain. Thus, our results demonstrate the amygdala's role in the processing of danger elicited by language. In addition, the results reinforce the amygdala's role in the modulation of the perception of, and response to, emotionally salient stimuli. The current study further suggests conservation of phylogenetically older mechanisms of emotional evaluation in the context of more recently evolved linguistic function.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/02/20 alle ore 07:59:55