Poster F21, Tuesday, March 28, 8:00 – 10:00 am, Pacific Concourse
Sadness can be related to the approach motivation: Evidence from frontal alpha power asymmetry
Kohei Fuseda1, Ayano Matsubara1, Jun'ichi Katayama1,2; 1Kwansei Gakuin University, 2Center for Applied Psychological Science (CAPS)
Frontal alpha power asymmetry is known to be associated with motivational states: Lower left-frontal alpha power reflects the approach motivation, whereas lower right-frontal power reflects the withdrawal motivation. This study investigated whether these motivational states are influenced by the relationship between the observer and the stimulus. We expected the asymmetry to be more distinctive when the observer has a close relationship to the stimulus. Twenty-four students who had owned a dog participated in this study. They were randomly assigned to either the sad (n=12) or joy (n=12) condition. Participants in sad and joy condition watched the two movies (7 min. each) of the stories of a dog's death or dog's playing scene, respectively. Electroencephalogram signals were recorded while they were watching the movie, after which they rated subjective sadness and enjoyment using 100 mm visual analog scales. Each subjective rating was significantly higher in the corresponding condition, indicating that mood induction was successful. Right-frontal alpha power was significantly higher than left-frontal power only in the sad condition, whereas no frontal asymmetry was observed in the joy condition. This asymmetry pattern is opposite to that found in previous studies. In this study, sadness was associated with the approach, rather than the withdrawal, motivation. Thus, dog lovers showed the approach motivation to the sad story about the dog. In conclusion, motivational states are changed by the relationship between the observer and the stimulus.
Topic Area: EMOTION & SOCIAL: Emotional responding