| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Outline of Final Research Achievements |
Primates, including human beings, are thought to be social animals in nature. Cortical neuron mechanisms of social learning and social adaptation have often been discussed, whereas subcortical neuron mechanisms remain unclear. This study investigated whether and how information of reward to others influenced anticipatory behavior for rewards to oneself and the neuronal representation in the primate lateral hypothalamus. Our physiological and pharmacological experiments have revealed that neurons in the lateral hypothalamus encoded signals of self-reward and other-reward values in an integrated manner (subjective value) and that their activity was profoundly involved in the anticipatory licking behavior for rewards. These findings may extend current learning theories based on self-reward information to those based on not only self-reward but also other-reward information and provide valuable insights into our social behavior.
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