본문

서브메뉴

Neural Basis of Spatial, Contextual, and Temporal Memory in the Retrosplenial Cortex.
Neural Basis of Spatial, Contextual, and Temporal Memory in the Retrosplenial Cortex.

상세정보

자료유형  
 학위논문
Control Number  
0017162653
International Standard Book Number  
9798384049685
Dewey Decimal Classification Number  
616
Main Entry-Personal Name  
Subramanian, Dev Laxman.
Publication, Distribution, etc. (Imprint  
[S.l.] : Cornell University., 2024
Publication, Distribution, etc. (Imprint  
Ann Arbor : ProQuest Dissertations & Theses, 2024
Physical Description  
169 p.
General Note  
Source: Dissertations Abstracts International, Volume: 86-03, Section: B.
General Note  
Advisor: Smith, David.
Dissertation Note  
Thesis (Ph.D.)--Cornell University, 2024.
Summary, Etc.  
요약The Retrosplenial cortex (RSC) is a brain region which plays an important role in spatial navigation and has also been shown to be involved in episodic memory in humans. Although several studies have shown the involvement of the RSC in various cognitive functions, still a lot remains to be understood about its information coding mechanisms. In this work, I examine the RSC firing patterns underlying its functions in spatial, contextual, and temporal memory. RSC is interconnected with the Hippocampus (HPC), which is also involved in similar functions. Even though both the regions are involved in navigation-related firing, there has been little work directly comparing the information coding mechanisms of these two brain regions. To address this, I examined the similarities and differences in spatial and contextual firing patterns in the two regions and found that even when encoding the same type of navigational information, they used different coding schemes. Also, head direction was prominently encoded by the RSC but not by the HPC. The results show that the RSC and HPC make related, but somewhat different contributions to spatial cognition. RSC lesions have been shown to cause impairment in temporal memory but the neuronal firing patterns supporting it have not been studied. I addressed this by analyzing archival RSC neuronal firing data during the intertrial delay period from two behavioral tasks with different memory demands. I discovered time cells in the RSC, and they are sensitive to the memory demands of the task. This suggests that temporal coding is a prominent feature of the RSC firing patterns. Lesion studies have found that the RSC is also necessary for spatial working memory tasks but the firing patterns underlying it remain unknown. To address this, I analysed the firing activity of RSC neurons while rats held spatial information in memory over the delay period of a spatial alternation task. I found that the RSC neurons exhibited reliably different firing patterns throughout the delay periods preceding each trial type, suggesting that these firing patterns represent critical memory information underlying the role of the RSC in spatial working memory.
Subject Added Entry-Topical Term  
Neurosciences.
Subject Added Entry-Topical Term  
Physiology.
Index Term-Uncontrolled  
Electrophysiology
Index Term-Uncontrolled  
Memory
Index Term-Uncontrolled  
Retrosplenial cortex
Added Entry-Corporate Name  
Cornell University Psychological Sciences and Human Development
Host Item Entry  
Dissertations Abstracts International. 86-03B.
Electronic Location and Access  
로그인을 한후 보실 수 있는 자료입니다.
Control Number  
joongbu:658179

MARC

 008250224s2024        us  ||||||||||||||c||eng  d
■001000017162653
■00520250211152037
■006m          o    d                
■007cr#unu||||||||
■020    ▼a9798384049685
■035    ▼a(MiAaPQ)AAI31335793
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a616
■1001  ▼aSubramanian,  Dev  Laxman.▼0(orcid)0000-0002-2019-264X
■24510▼aNeural  Basis  of  Spatial,  Contextual,  and  Temporal  Memory  in  the  Retrosplenial  Cortex.
■260    ▼a[S.l.]▼bCornell  University.  ▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a169  p.
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  86-03,  Section:  B.
■500    ▼aAdvisor:  Smith,  David.
■5021  ▼aThesis  (Ph.D.)--Cornell  University,  2024.
■520    ▼aThe  Retrosplenial  cortex  (RSC)  is  a  brain  region  which  plays  an  important  role  in  spatial  navigation  and  has  also  been  shown  to  be  involved  in  episodic  memory  in  humans.  Although  several  studies  have  shown  the  involvement  of  the  RSC  in  various  cognitive  functions,  still  a  lot  remains  to  be  understood  about  its  information  coding  mechanisms.  In  this  work,  I  examine  the  RSC  firing  patterns  underlying  its  functions  in  spatial,  contextual,  and  temporal  memory.  RSC  is  interconnected  with  the  Hippocampus  (HPC),  which  is  also  involved  in  similar  functions.  Even  though  both  the  regions  are  involved  in  navigation-related  firing,  there  has  been  little  work  directly  comparing  the  information  coding  mechanisms  of  these  two  brain  regions.  To  address  this,  I  examined  the  similarities  and  differences  in  spatial  and  contextual  firing  patterns  in  the  two  regions  and  found  that  even  when  encoding  the  same  type  of  navigational  information,  they  used  different  coding  schemes.  Also,  head  direction  was  prominently  encoded  by  the  RSC  but  not  by  the  HPC.  The  results  show  that  the  RSC  and  HPC  make  related,  but  somewhat  different  contributions  to  spatial  cognition.  RSC  lesions  have  been  shown  to  cause  impairment  in  temporal  memory  but  the  neuronal  firing  patterns  supporting  it  have  not  been  studied.  I  addressed  this  by  analyzing  archival  RSC  neuronal  firing  data  during  the  intertrial  delay  period  from  two  behavioral  tasks  with  different  memory  demands.  I  discovered  time  cells  in  the  RSC,  and  they  are  sensitive  to  the  memory  demands  of  the  task.  This  suggests  that  temporal  coding  is  a  prominent  feature  of  the  RSC  firing  patterns.  Lesion  studies  have  found  that  the  RSC  is  also  necessary  for  spatial  working  memory  tasks  but  the  firing  patterns  underlying  it  remain  unknown.  To  address  this,  I  analysed  the  firing  activity  of  RSC  neurons  while  rats  held  spatial  information  in  memory  over  the  delay  period  of  a  spatial  alternation  task.  I  found  that  the  RSC  neurons  exhibited  reliably  different  firing  patterns  throughout  the  delay  periods  preceding  each  trial  type,  suggesting  that  these  firing  patterns  represent  critical  memory  information  underlying  the  role  of  the  RSC  in  spatial  working  memory.
■590    ▼aSchool  code:  0058.
■650  4▼aNeurosciences.
■650  4▼aPhysiology.
■653    ▼aElectrophysiology
■653    ▼aMemory
■653    ▼aRetrosplenial  cortex
■690    ▼a0317
■690    ▼a0719
■71020▼aCornell  University▼bPsychological  Sciences  and  Human  Development.
■7730  ▼tDissertations  Abstracts  International▼g86-03B.
■790    ▼a0058
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17162653▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

미리보기

내보내기

chatGPT토론

Ai 추천 관련 도서


    New Books MORE
    Related books MORE
    최근 3년간 통계입니다.

    detalle info

    • Reserva
    • 캠퍼스간 도서대출
    • 서가에 없는 책 신고
    • Mi carpeta
    Material
    número de libro número de llamada Ubicación estado Prestar info
    TQ0034497 T   원문자료 열람가능/출력가능 열람가능/출력가능
    마이폴더 부재도서신고

    * Las reservas están disponibles en el libro de préstamos. Para hacer reservaciones, haga clic en el botón de reserva

    해당 도서를 다른 이용자가 함께 대출한 도서

    Related books

    Related Popular Books

    도서위치