| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Outline of Final Research Achievements |
Regarding the relationship between internally guided decision making and intrinsic brain activities, it was revealed that the intrinsic brain activity of the lateral prefrontal cortex modulates the activity of the medial prefrontal cortex during the internally guided decision making. In addition, the extent of the preference for the option, which was chosen in the past, was modulated by depressive symptoms, reward sensitivity, and a degree of power of the post response βγ wave generated from anterior cingulate cortex. Although we showed that reinforcement learning models can be applied to the internally guided decision making as well as externally guided decision making, the simple application of reinforcement learning is insufficient and factors such as self-relatedness of stimulus might mediate the learning process during internally guided decision making.
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