자유게시판

조회 수 2851 추천 수 0 댓글 0
?

단축키

Prev이전 문서

Next다음 문서

크게 작게 위로 아래로 댓글로 가기 인쇄
?

단축키

Prev이전 문서

Next다음 문서

크게 작게 위로 아래로 댓글로 가기 인쇄

(연합뉴스)
원숭이도 잘못된 선택 후회하고 대안 찾아
http://media.daum.net/culture/health/view.html?rMode=list&cSortKey=depth&allComment=T&cateid=1013&newsid=20110603104317377&p=yonhap&RIGHT_COMM=R9


(TIME)
Monkeys, Like Humans, Make Bad Choices and Regret Them, Too
http://healthland.time.com/2011/05/31/monkeys-play-rock-paper-scissors-and-show-regret-over-losing/


(Neuron)
Distributed Coding of Actual and Hypothetical Outcomes in the Orbital and Dorsolateral Prefrontal Cortex
http://www.cell.com/neuron/abstract/S0896-6273(11)00346-1

Summary
Knowledge about hypothetical outcomes from unchosen actions is beneficial only when such outcomes can be correctly attributed to specific actions. Here we show that during a simulated rock-paper-scissors game, rhesus monkeys can adjust their choice behaviors according to both actual and hypothetical outcomes from their chosen and unchosen actions, respectively. In addition, neurons in both dorsolateral prefrontal cortex and orbitofrontal cortex encoded the signals related to actual and hypothetical outcomes immediately after they were revealed to the animal. Moreover, compared to the neurons in the orbitofrontal cortex, those in the dorsolateral prefrontal cortex were more likely to change their activity according to the hypothetical outcomes from specific actions. Conjunctive and parallel coding of multiple actions and their outcomes in the prefrontal cortex might enhance the efficiency of reinforcement learning and also contribute to their context-dependent memory.


Highlights
► Monkeys can learn from hypothetical outcomes of unchosen actions
► Neurons in the prefrontal cortex encode hypothetical outcomes from specific actions
► Orbitofrontal cortex encodes hypothetical outcomes from multiple actions similarly
► Activity related to actual and hypothetical outcomes shows a similar time course

(참고)
http://en.wikipedia.org/wiki/Rhesus_macaque
http://en.wikipedia.org/wiki/Orbitofrontal_cortex
http://en.wikipedia.org/wiki/Dorsolateral_prefrontal_cortex
http://en.wikipedia.org/wiki/Rock-paper-scissors


  1. [뉴욕] 3. 메트로폴리탄 뮤지엄 2

    Date2007.11.06 Category공지 By이정원 Views1902
    Read More
  2. [뉴욕] 2. 메트로폴리탄 뮤지엄 1

    Date2007.11.05 Category공지 By이정원 Views2002
    Read More
  3. [뉴욕] 1. 뉴욕현대미술관 (MOMA)

    Date2007.11.01 Category공지 By이정원 Views2057
    Read More
  4. [뉴욕] 0. 뉴욕에서의 열흘

    Date2007.10.31 Category공지 By이정원 Views2439
    Read More
  5. [뉴스] 비둘기, 먹이 줄 사람 알아본다

    Date2011.06.25 By변정구 Views1418
    Read More
  6. [뉴스] KAIST 조광현 교수 연구팀, 세포 신호 전달 네트워크의 최소 핵심구조인 커널을 밝혀

    Date2011.06.22 By변정구 Views1592
    Read More
  7. [뇌과학과 동서 정신의학의 만남] 심포지움 이정모의 발표자료 파일 연결

    Date2009.02.05 Category공지 By이정모 Views2275
    Read More
  8. [뇌과학]특별한 뇌과학 강연 따라잡기 4.

    Date2010.02.11 By서지미 Views1969
    Read More
  9. [뇌과학]특별한 뇌과학 강연 따라잡기 3.

    Date2010.02.05 By서지미 Views2116
    Read More
  10. [뇌과학]특별한 뇌과학 강연 따라잡기 2.

    Date2010.02.03 By서지미 Views2116
    Read More
  11. [뇌과학]강연 녹음 파일 다운로드[패스워드 공개]

    Date2010.02.08 By강혜정 Views2233
    Read More
  12. [뇌과학]mRNA의 유전 암호(codon)

    Date2010.01.24 By강혜정 Views2549
    Read More
  13. [뇌과학] 특별한 뇌과학 강연 따라잡기 1.

    Date2010.02.02 By서지미 Views2062
    Read More
  14. [뇌과학] 원숭이도 잘못된 선택 후회하고 대안 찾아

    Date2011.06.03 By변정구 Views2851
    Read More
  15. [뇌과학] 강의 녹음 파일 전송했습니다

    Date2010.01.31 By강혜정 Views2079
    Read More
  16. [뇌과학 강연 2/6] 간단 후기 + 오늘의 주 논문(PDF 링크)

    Date2010.02.07 By김제원 Views1833
    Read More
  17. [뇌, 생각의 출현] 독서 감상문 대회가 있네요.

    Date2009.06.22 By윤보미 Views1800
    Read More
  18. [뇌 생각의 출현]을 읽고 가입했습니다.

    Date2009.10.19 By정만서 Views1983
    Read More
  19. [네이버기사]화학의 언어

    Date2009.07.09 By서지미 Views2561
    Read More
  20. [네이버기사]제주도..불과 물의 섬

    Date2009.08.08 By서지미 Views2043
    Read More
목록
Board Pagination Prev 1 ... 160 161 162 163 164 165 166 167 168 169 ... 216 Next
/ 216