E-ISSN : 2733-4538
The purpose of this study was to examine the effect of manipulating the frontal EEG asymmetry by neuro-feedback on the approach/withdrawal motivational response, and to ascertain the frontal asymmetrical activity associated with the motivation direction. 17 right-handed participants were partially randomly assigned to receive neurofeedback training, and this training was designed to increase the left frontal activity relative to the right frontal activity (the LEFT group) or they received training in the opposite direction (the RIGHT group). 3 consecutive days of neurofeedback training was done, and this was consisted of 5 4-min sessions (a total of 15 sessions). All the participants completed the BDI-II and, BIS/BAS and the affective rating scale for the positive, negative and neutral emotionally evocative film clips at the first and last day. As a result, the individuals in the LEFT group increase their left frontal activity relative to the right frontal activity, and the and individuals in the RIGHT group increase their right frontal activity relative to their left frontal activity. Consequently, the LEFT group reported a higher BAS score and stronger affect in response to obvious emotional film clips than did the RIGHT group. There was no significant relationship between the groups and the BIS score. These results suggest frontal asymmetrical activity is related to the motivational direction and it is not related to the affective valence.
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