J Korean Neuropsychiatr Assoc.  2006 Jan;45(1):28-33.

Emotional Responsivity to the Emotional Pictures: Distribution in an Evaluative Space

• Lee E
• Kang JI
• Park SH
• Jeon JH
• Choi JH
• Kim JJ
• An SK

Abstract

OBJECTIVES
To investigate the nature of emotional responsiveness in normal adults, we exam the emotional responses to emotional pictures in an evaluative space defined by arousal and valence.
METHODS
Subjects were instructed to rate the arousal and valence that they experienced from the presentation of one of two sets of 60 emotional pictures. These two picture sets were comprised of 107 pictures: 101 selected from International Affective Pictures System and six pictures from our own collection. According to "evaluative space model", the authors set an evaluative space defined by the arousal scores as independent variable and the valence scores as dependent variable. In this evaluative space, one-hundred-and-seven pairs of coordinates representing respective emotional pictures were plotted. With regression analyses, the steepness of the regression lines on the plots with positive emotional responsiveness (n=51) and those with negative emotional responsiveness (n=56) were compared.
RESULTS
In the evaluative space, the regression line of negative emotional responsiveness was significantly different from that of positive responsiveness. The slope of negative responsiviveness was significantly steeper than that of positive responsiveness. At a low arousal level, the absolute valence of a positive stimuli was larger than that of a negative picture.
CONCLUSION
This finding indicates that the function of the negative affective responsiveness might be different from that of the positive responsitiveness. IAPS also seems applicable to Korean subjects.

Keyword

Emotion; Arousal; Valence; Negativity bias; Positivity offset

MeSH Terms

Adult
Arousal
Humans