Emotional expectancy: brain electrical activity associated with an emotional bias in interpreting life events.
Psychophysiology
; 33(3): 218-33, 1996 May.
Article
in En
| MEDLINE
| ID: mdl-8936391
ABSTRACT
University students in either an optimistic or pessimistic mood state read brief stories of daily life events as event-related brain potentials were collected during the final word of each story. For subjects in a pessimistic mood, a bias to expect negative outcomes was seen as an N400/P300 effect over posterior scalp regions. For subjects in an optimistic mood, a differentiation between good and bad outcomes was also observed, but it was specific to medial frontal areas. Analysis of single-trial P300 latencies suggested that semantically incongruent and mood-incongruent outcome words resulted in increased median latency of the late positive complex (LPC) and resulted in increased variability of LPC latency across trials.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Brain
/
Affect
/
Electroencephalography
/
Emotions
/
Life Change Events
Type of study:
Risk_factors_studies
Limits:
Adolescent
/
Adult
/
Female
/
Humans
/
Male
Language:
En
Journal:
Psychophysiology
Year:
1996
Document type:
Article
Affiliation country:
Estados Unidos