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Titolo:
Fear and anxiety: animal models and human cognitive psychophysiology
Autore:
Lang, PJ; Davis, M; Ohman, A;
Indirizzi:
Univ Florida, Hlth Sci Ctr, Ctr Study Emot & Attent, Gainesville, FL 32610USA Univ Florida Gainesville FL USA 32610 & Attent, Gainesville, FL 32610USA Emory Univ, Sch Med, Dept Psychiat, Atlanta, GA 30322 USA Emory Univ Atlanta GA USA 30322 Med, Dept Psychiat, Atlanta, GA 30322 USA Karolinska Inst, Inst Klin Nervovetenskap, Sekt Psykologi, S-17176 Stockholm, Sweden Karolinska Inst Stockholm Sweden S-17176 logi, S-17176 Stockholm, Sweden
Titolo Testata:
JOURNAL OF AFFECTIVE DISORDERS
fascicolo: 3, volume: 61, anno: 2000,
pagine: 137 - 159
SICI:
0165-0327(200012)61:3<137:FAAAMA>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
CORTICOTROPIN-RELEASING FACTOR; ACOUSTIC STARTLE REFLEX; EMOTIONAL FACIAL EXPRESSIONS; ELECTRICALLY-EVOKED STARTLE; SKIN-CONDUCTANCE RESPONSES; BLOCK CONDITIONED FEAR; POTENTIATED STARTLE; CENTRAL NUCLEUS; STRIA TERMINALIS; MASKED STIMULI;
Keywords:
fear; anxiety; startle-reflex; psychophysiology; animal models; defense motivation;
Tipo documento:
Review
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Life Sciences
Citazioni:
124
Recensione:
Indirizzi per estratti:
Indirizzo: Lang, PJ Univ Florida, Hlth Sci Ctr, Ctr Study Emot & Attent, POB 100165, Gainesville, FL 32610 USA Univ Florida POB 100165 Gainesville FL USA 32610 le, FL 32610 USA
Citazione:
P.J. Lang et al., "Fear and anxiety: animal models and human cognitive psychophysiology", J AFFECT D, 61(3), 2000, pp. 137-159

Abstract

The aim of this paper is to explicate what is special about emotional information processing, emphasizing the neural foundations that underlie the experience and expression of fear. A functional, anatomical model of defense behavior in animals is presented and applications are described in cognitive and physiological studies of human affect. It is proposed that unpleasantemotions depend on the activation of an evolutionarily primitive subcortical circuit, including the amygdala and the neural structures to which it projects. This motivational system mediates specific autonomic (e.g., heart rate change) and somatic reflexes (e.g., startle change) that originally promoted survival in dangerous conditions. These same response patterns are illustrated in humans, as they process objective, memorial, and media stimuli. Furthermore, it is shown how variations in the neural circuit and its outputs may separately characterize cue-specific fear las in specific phobia) and more generalized anxiety. Finally, again emphasizing links between the animal and human data, we focus on special, attentional features of emotional processing: The automaticity of fear reactions, hyper-reactivity to minimal threat-cues, and evidence that the physiological responses in fear may be independent of slower, language-based appraisal processes. (C) 2000 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/01/20 alle ore 06:08:48