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Titolo:
Dispositional pessimism and amygdala activity: a PET study in healthy volunteers
Autore:
Fischer, H; Tillfors, M; Furmark, T; Fredrikson, M;
Indirizzi:
Uppsala Univ, Dept Psychol, Uppsala, Sweden Uppsala Univ Uppsala SwedenUppsala Univ, Dept Psychol, Uppsala, Sweden Massachusetts Gen Hosp, Psychiat Neuroimaging Res Grp, Boston, MA 02114 USA Massachusetts Gen Hosp Boston MA USA 02114 Res Grp, Boston, MA 02114 USA Harvard Univ, Sch Med, Boston, MA USA Harvard Univ Boston MA USAHarvard Univ, Sch Med, Boston, MA USA Univ Uppsala Hosp, PET Ctr, SE-75142 Uppsala, Sweden Univ Uppsala Hosp Uppsala Sweden SE-75142 Ctr, SE-75142 Uppsala, Sweden
Titolo Testata:
NEUROREPORT
fascicolo: 8, volume: 12, anno: 2001,
pagine: 1635 - 1638
SICI:
0959-4965(20010613)12:8<1635:DPAAAA>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
POSITRON-EMISSION-TOMOGRAPHY; NEGATIVE AFFECT; DEPRESSION; SADNESS; PROJECTIONS; VALIDATION; SCANS; FEAR;
Keywords:
affective style; attributional style; brain; emotion; human; negative affect; neuroimaging; positron emission tomography;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
28
Recensione:
Indirizzi per estratti:
Indirizzo: Fredrikson, M Uppsala Univ, Dept Psychol, Uppsala, Sweden Uppsala Univ Uppsala Sweden Dept Psychol, Uppsala, Sweden
Citazione:
H. Fischer et al., "Dispositional pessimism and amygdala activity: a PET study in healthy volunteers", NEUROREPORT, 12(8), 2001, pp. 1635-1638

Abstract

The present study used scores from Seligman's Attribution Style Questionnaire and [O-15] water positron emission tomographic measurements of regionalcerebral blood flow (rCBF) to investigate the relation between individual differences in dispositional pessimism and amygdala activity. During scanning 13 healthy non-snake-phobic females passively viewed a snake videotape. Using one-tailed tests, significant negative correlations were evident between pessimism scores, with low scores reflecting relatively more pessimism,and right (r=-0.60; p=0.014) and left amygdala rCBF (r=-0.53;p=0.032). These results extend previous neuroimaging findings in healthy subjects indicating a role for the amygdala in transient negative emotional states, and suggest that this multimodal brain region also is involved in more durable negative affects such as dispositional pessimism. NeuroReport 12:1635-1638 (C) 2001 Lippincott Williams & Wilkins.

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Documento generato il 25/01/20 alle ore 09:24:48