Neural activity related to temporal credit assignment in medial prefrontal cortex and secondary motor cortex = 시간적 기여도 할당과 관련된 내측전전두피질과 이차운동피질의 신경 활성

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The neural basis of temporal credit assignment is not well known. To investigate neural processes related to temporal credit assignment in the frontal cortex, I recorded neuronal activity in the dorsal anterior Cingulate cortex, prelimbic cortex, infralimbic cortex and secondary motor cortex of rats performing a dynamic two-armed bandit task in which a choice must be remembered until its outcome is revealed for correct credit assignment. Ifound that choice signals were maintained above the chance level until choice outcome was revealed in all recorded areas. I also found that neural signals for choice, outcome and action value converge when choice outcome was revealed. These results suggest that the frontal cortex maintains choice signals and updates action value by combining the maintained choice signals with action value and outcome signals.
Advisors
Jung, Min Whanresearcher정민환researcher
Description
한국과학기술원 :생명과학과,
Publisher
한국과학기술원
Issue Date
2019
Identifier
325007
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 생명과학과, 2019.2,[v, 26 p. :]

Keywords

medial prefrontal cortex; secondary motor cortex▼atemporal credit assignment▼achoice signal; 내측 전전두피질▼a이차 운동피질▼a시간적 기여도 할당문제▼a선택 신호

URI
http://hdl.handle.net/10203/266280
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=843201&flag=dissertation
Appears in Collection
BS-Theses_Master(석사논문)
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