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Task-Dependent Representations for Cerebellar Learning- [electronic resource]
Task-Dependent Representations for Cerebellar Learning - [electronic resource]
Inhalt Info
Task-Dependent Representations for Cerebellar Learning- [electronic resource]
자료유형  
 학위논문파일 국외
최종처리일시  
20240214101248
ISBN  
9798379786953
DDC  
616
저자명  
Xie, Marjorie.
서명/저자  
Task-Dependent Representations for Cerebellar Learning - [electronic resource]
발행사항  
[S.l.]: : Columbia University., 2023
발행사항  
Ann Arbor : : ProQuest Dissertations & Theses,, 2023
형태사항  
1 online resource(114 p.)
주기사항  
Source: Dissertations Abstracts International, Volume: 85-01, Section: B.
주기사항  
Advisor: Litwin-Kumar, Ashok.
학위논문주기  
Thesis (Ph.D.)--Columbia University, 2023.
사용제한주기  
This item must not be sold to any third party vendors.
초록/해제  
요약The cerebellar granule cell layer has inspired numerous theoretical models of neural representations that support learned behaviors, beginning with the work of David Marr and James Albus. In these models, granule cells form a sparse, combinatorial encoding of diverse sensorimotor inputs. Such sparse representations are optimal for learning to discriminate random stimuli. However, recent observations of dense, low-dimensional activity across granule cells have called into question the role of sparse coding in these neurons. In this thesis, I generalize theories of cerebellar learning to determine the optimal granule cell representation for tasks beyond random stimulus discrimination, including continuous input-output transformations as required for smooth motor control. I show that for such tasks, the optimal granule cell representation is substantially denser than predicted by classic theories. The results provide a general theory of learning in cerebellum-like systems and suggest that optimal cerebellar representations are task-dependent.
일반주제명  
Neurosciences.
일반주제명  
Biomedical engineering.
키워드  
Cerebellum
키워드  
Motor control
키워드  
Neural networks
키워드  
Learned behaviors
키워드  
Classic theories
기타저자  
Columbia University Neurobiology and Behavior
기본자료저록  
Dissertations Abstracts International. 85-01B.
기본자료저록  
Dissertation Abstract International
전자적 위치 및 접속  
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