| Budget Amount *help |
¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Outline of Final Research Achievements |
To maintain cooperation with a large population, selective prosocial behavior based on second-order information (information about the characteristics of a previous partner of the partner) is essential. In the present study, we examined how selective prosocial behavior based on second-order information develops during early infancy. Our experiments were carried out with infants of 8-month-olds and 16-month-olds. While 16-month-olds showed prosocial behavior based on second-order information, 8-month-olds didn’t show such behavior. It is suggested that infants’ prosocial behavior become based on more complex information about the context in which partner's behavior is performed after the first year of life.
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