| Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2012: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Outline of Final Research Achievements |
Imprinting behavior in birds is a good model for juvenile learning, because its critical period resides in several days after hatching. Major excitatory neural transmitter in the brain is glutamate, and an activation of one of its receptors plays a role in the establishment of imprinting behavior. A neural circuit connecting a brain area similar to the visual cortex and a memory storing region is involved in the imprinting behavior, and cells in this neural circuit express this receptor. Imprint training activates and enhances this receptor expressed in these cells by positive feedback. Consequently, transduction of neural information in this circuit is accelerated and enhanced in a short time. It is suggested that this is a mechanism for various juvenile learning.
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