| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Outline of Final Research Achievements |
The purpose of this study was, (a) to evaluate synchronization of spontaneous brain activities during nonverbal face-to-face interaction, specifically, eye-contact, and (b) to elucidate changes in synchrony in the brain activities while two subjects were engaged in cognitive tasks either cooperatively or competitively. The results indicate that (A) the inter-subject synchrony as measured in magnitude squared coherence in the beta-band (20 Hz) brain activity between the subjects were significantly increased during the periods when they contacted their eyes each other compared to those when their eyes were averted, and that (B) the inter-subject synchrony in alpha-band (8 - 13 Hz) activities was decreased during the periods when the two subjects were engaged in the cognitive task cooperatively compared to those when they perform the task competitively, while the synchronization in gamma-band (25 - 45 Hz) activities were increased when they perform the same task cooperatively.
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