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Titolo:
Affective startle modulation in anticipation and perception
Autore:
Sabatinelli, D; Bradley, MM; Lang, PJ;
Indirizzi:
Univ Florida, Natl Inst Mental Hlth, Ctr Study Emot & Attent, Gainesville,FL 32610 USA Univ Florida Gainesville FL USA 32610 & Attent, Gainesville,FL 32610 USA
Titolo Testata:
PSYCHOPHYSIOLOGY
fascicolo: 4, volume: 38, anno: 2001,
pagine: 719 - 722
SICI:
0048-5772(200107)38:4<719:ASMIAA>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
BLINK REFLEX; FEAR;
Keywords:
emotion; anticipation; startle reflex; affective pictures;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Life Sciences
Citazioni:
20
Recensione:
Indirizzi per estratti:
Indirizzo: Bradley, MM Univ Florida, Natl Inst Mental Hlth, Ctr Study Emot & Attent, Box 100165 HSC, Gainesville, FL 32610 USA Univ Florida Box 100165 HSC Gainesville FL USA 32610 32610 USA
Citazione:
D. Sabatinelli et al., "Affective startle modulation in anticipation and perception", PSYCHOPHYSL, 38(4), 2001, pp. 719-722

Abstract

Startle modulation was investigated as participants first anticipated and then viewed affective pictures in order to determine whether affective modulation of the startle reflex is similar in these different task contexts. During a 6-s anticipation period, a neutral light cue signaled whether the upcoming picture would portray snakes, erotica, or household objects; at theend of the anticipatory period, a picture in the signaled category was viewed for 6 s. Male participants highly fearful of snakes were recruited to maximize emotional arousal during anticipation and perception. Results indicated that the startle reflex was potentiated when anticipating either unpleasant (phobic) or pleasant (erotic) pictures, compared to neutral stimuli, whereas during perception, reflexes were potentiated when viewing unpleasant stimuli, and reduced when viewing pleasant pictures. The startle reflex is modulated by hedonic valence in picture perception, and by emotional arousal in a task context involving picture anticipation.

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Documento generato il 22/01/20 alle ore 18:40:53