Autonomic specificity of basic emotions: evidence from pattern classification and cluster analysis.
Biol Psychol
; 84(3): 463-73, 2010 Jul.
Article
en En
| MEDLINE
| ID: mdl-20338217
Autonomic nervous system (ANS) specificity of emotion remains controversial in contemporary emotion research, and has received mixed support over decades of investigation. This study was designed to replicate and extend psychophysiological research, which has used multivariate pattern classification analysis (PCA) in support of ANS specificity. Forty-nine undergraduates (27 women) listened to emotion-inducing music and viewed affective films while a montage of ANS variables, including heart rate variability indices, peripheral vascular activity, systolic time intervals, and electrodermal activity, were recorded. Evidence for ANS discrimination of emotion was found via PCA with 44.6% of overall observations correctly classified into the predicted emotion conditions, using ANS variables (z=16.05, p<.001). Cluster analysis of these data indicated a lack of distinct clusters, which suggests that ANS responses to the stimuli were nomothetic and stimulus-specific rather than idiosyncratic and individual-specific. Collectively these results further confirm and extend support for the notion that basic emotions have distinct ANS signatures.
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Sistema Nervioso Autónomo
/
Emociones
Tipo de estudio:
Prognostic_studies
Idioma:
En
Revista:
Biol Psychol
Año:
2010
Tipo del documento:
Article
País de afiliación:
Estados Unidos