본문

서브메뉴

Orbitofrontal and Hippocampal Contributions to State Coding and Decision Making- [electronic resource]
Orbitofrontal and Hippocampal Contributions to State Coding and Decision Making - [electro...
Orbitofrontal and Hippocampal Contributions to State Coding and Decision Making- [electronic resource]

Detailed Information

자료유형  
 학위논문파일 국외
최종처리일시  
20240214100458
ISBN  
9798380380751
DDC  
616
저자명  
Ford, Celia Fernandez.
서명/저자  
Orbitofrontal and Hippocampal Contributions to State Coding and Decision Making - [electronic resource]
발행사항  
[S.l.]: : University of California, Berkeley., 2023
발행사항  
Ann Arbor : : ProQuest Dissertations & Theses,, 2023
형태사항  
1 online resource(70 p.)
주기사항  
Source: Dissertations Abstracts International, Volume: 85-03, Section: B.
주기사항  
Advisor: Wallis, Joni.
학위논문주기  
Thesis (Ph.D.)--University of California, Berkeley, 2023.
사용제한주기  
This item must not be sold to any third party vendors.
초록/해제  
요약To make informed decisions, one needs to understand the world in which those decisions are being made: the current task state. Both the orbitofrontal cortex (OFC) and the hippocampus (HPC) have been implicated in representing task state, but the nature of these representations, and what role each region plays, remains unclear. Recent work from our lab showed that HPC-driven neural oscillations in OFC are critical for value-guided decision making, and that value states in OFC oscillate during the deliberation process. We hypothesized that (1) both HPC and OFC robustly and flexibly represent task state while primates learn and make decisions, and (2) value state dynamics in OFC are shaped by theta oscillations originating from HPC.  We simultaneously recorded large populations of neurons from OFC and HPC while two monkeys performed a probabilistic reversal learning task, where reward contingencies could be captured by two task states. Using population-level decoding, we found neural representations of task state in both OFC and HPC that remained stable within each trial but strengthened with learning as monkeys adapted to reversals. Subjects also appeared to use their understanding of task structure to anticipate reversals, evidenced by anticipatory neural representations of the upcoming task state. We then decoded representations of option values from OFC neurons recorded from two other monkeys performing a value-based decision-making task. Relating decoded state dynamics to theta-filtered LFP signals in OFC, we found that value states switched independent from theta cycles, suggesting that a mechanism other than HPC-driven theta oscillations shapes the dynamics of deliberation. 
일반주제명  
Neurosciences.
일반주제명  
Psychology.
일반주제명  
Psychobiology.
일반주제명  
Cognitive psychology.
키워드  
Decision making
키워드  
Hippocampus
키워드  
Macaque
키워드  
Orbitofrontal cortex
키워드  
Reinforcement learning
키워드  
Theta oscillations
기타저자  
University of California, Berkeley Neuroscience
기본자료저록  
Dissertations Abstracts International. 85-03B.
기본자료저록  
Dissertation Abstract International
전자적 위치 및 접속  
로그인 후 원문을 볼 수 있습니다.

MARC

 008240612s2023      us  |||||||||||||||c||eng  d
■001000016932442
■00520240214100458
■006m          o    d                
■007cr#unu||||||||
■020    ▼a9798380380751
■035    ▼a(MiAaPQ)AAI30492637
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a616
■1001  ▼aFord,  Celia  Fernandez.
■24510▼aOrbitofrontal  and  Hippocampal  Contributions  to  State  Coding  and  Decision  Making▼h[electronic  resource]
■260    ▼a[S.l.]:▼bUniversity  of  California,  Berkeley.  ▼c2023
■260  1▼aAnn  Arbor  :▼bProQuest  Dissertations  &  Theses,  ▼c2023
■300    ▼a1  online  resource(70  p.)
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  85-03,  Section:  B.
■500    ▼aAdvisor:  Wallis,  Joni.
■5021  ▼aThesis  (Ph.D.)--University  of  California,  Berkeley,  2023.
■506    ▼aThis  item  must  not  be  sold  to  any  third  party  vendors.
■520    ▼aTo  make  informed  decisions,  one  needs  to  understand  the  world  in  which  those  decisions  are  being  made:  the  current  task  state.  Both  the  orbitofrontal  cortex  (OFC)  and  the  hippocampus  (HPC)  have  been  implicated  in  representing  task  state,  but  the  nature  of  these  representations,  and  what  role  each  region  plays,  remains  unclear.  Recent  work  from  our  lab  showed  that  HPC-driven  neural  oscillations  in  OFC  are  critical  for  value-guided  decision  making,  and  that  value  states  in  OFC  oscillate  during  the  deliberation  process.  We  hypothesized  that  (1)  both  HPC  and  OFC  robustly  and  flexibly  represent  task  state  while  primates  learn  and  make  decisions,  and  (2)  value  state  dynamics  in  OFC  are  shaped  by  theta  oscillations  originating  from  HPC.  We  simultaneously  recorded  large  populations  of  neurons  from  OFC  and  HPC  while  two  monkeys  performed  a  probabilistic  reversal  learning  task,  where  reward  contingencies  could  be  captured  by  two  task  states.  Using  population-level  decoding,  we  found  neural  representations  of  task  state  in  both  OFC  and  HPC  that  remained  stable  within  each  trial  but  strengthened  with  learning  as  monkeys  adapted  to  reversals.  Subjects  also  appeared  to  use  their  understanding  of  task  structure  to  anticipate  reversals,  evidenced  by  anticipatory  neural  representations  of  the  upcoming  task  state.  We  then  decoded  representations  of  option  values  from  OFC  neurons  recorded  from  two  other  monkeys  performing  a  value-based  decision-making  task.  Relating  decoded  state  dynamics  to  theta-filtered  LFP  signals  in  OFC,  we  found  that  value  states  switched  independent  from  theta  cycles,  suggesting  that  a  mechanism  other  than  HPC-driven  theta  oscillations  shapes  the  dynamics  of  deliberation. 
■590    ▼aSchool  code:  0028.
■650  4▼aNeurosciences.
■650  4▼aPsychology.
■650  4▼aPsychobiology.
■650  4▼aCognitive  psychology.
■653    ▼aDecision  making
■653    ▼aHippocampus
■653    ▼aMacaque
■653    ▼aOrbitofrontal  cortex
■653    ▼aReinforcement  learning
■653    ▼aTheta  oscillations
■690    ▼a0317
■690    ▼a0621
■690    ▼a0349
■690    ▼a0633
■71020▼aUniversity  of  California,  Berkeley▼bNeuroscience.
■7730  ▼tDissertations  Abstracts  International▼g85-03B.
■773    ▼tDissertation  Abstract  International
■790    ▼a0028
■791    ▼aPh.D.
■792    ▼a2023
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T16932442▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.
■980    ▼a202402▼f2024

Preview

Export

ChatGPT Discussion

AI Recommended Related Books


    New Books MORE
    Statistics for the past 3 years. Go to brief

    Подробнее информация.

    • Бронирование
    • не существует
    • моя папка
    • Первый запрос зрения
    • Non-Book Loan Application
    • Nighttime Book Loan Application
    материал
    Reg No. Количество платежных Местоположение статус Ленд информации
    TF09405 전자도서 My Folder 부재도서신고 비도서대출신청

    * Бронирование доступны в заимствований книги. Чтобы сделать предварительный заказ, пожалуйста, нажмите кнопку бронирование

    Books borrowed together with this book

    Related Popular Books

    Available after logging in.