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Sensory Representations Optimized for the Natural Environment- [electronic resource]
Sensory Representations Optimized for the Natural Environment- [electronic resource]
상세정보
- 자료유형
- 학위논문파일 국외
- 최종처리일시
- 20240214100124
- ISBN
- 9798379755898
- DDC
- 153
- 저자명
- Zhang, Lingqi.
- 서명/저자
- Sensory Representations Optimized for the Natural Environment - [electronic resource]
- 발행사항
- [S.l.]: : University of Pennsylvania., 2023
- 발행사항
- Ann Arbor : : ProQuest Dissertations & Theses,, 2023
- 형태사항
- 1 online resource(152 p.)
- 주기사항
- Source: Dissertations Abstracts International, Volume: 84-12, Section: B.
- 주기사항
- Advisor: Brainard, David H.;Stocker, Alan A.
- 학위논문주기
- Thesis (Ph.D.)--University of Pennsylvania, 2023.
- 사용제한주기
- This item must not be sold to any third party vendors.
- 초록/해제
- 요약The limited resources available to the visual system must be allocated efficiently to support its function. To achieve this, our brain needs to take advantage of the statistical regularities of our visual environment. In this thesis, I systematically explore how different aspects of natural stimulus statistics can impact and determine perceptual behavior and sensory representation in both biological and artificial systems. In Chapter 1, I provide a brief review of the theory of efficient coding, models of natural image statistics, and the interplay between these two fields. In Chapter 2, based on a Bayesian ideal observer model that is constrained by efficient coding, I show how simple stimulus priors can provide a quantitative link between psychophysics and neurophysiology in the domain of speed perception. In Chapter 3, I extend these ideas to the domain of sensory adaptation. In particular, I develop a method to quantify changes in sensory encoding in a tilt illusion experiment, and find that these changes are consistent with an efficient coding account for which the encoding is optimized toward the conditional statistics of orientation based on the surrounding context. In Chapter 4, I generalize the efficient coding principle to fully naturalistic stimuli by building models of natural image statistics and image-computable ideal observers to quantify the information encoded by the early stages of visual encoding. I show how features of the retinal encoding can be explained by an optimal design principle. In Chapter 5, I present a novel algorithm for directly solving the linear optimal coding problem by finding the set of linear measurements that minimize error in a Bayesian image reconstruction problem. This approach improves upon established methods such as principal component analysis and compressed sensing, and provides a unifying perspective. Lastly, in Chapter 6, I discuss open questions and future directions.
- 일반주제명
- Cognitive psychology.
- 일반주제명
- Biology.
- 일반주제명
- Statistics.
- 키워드
- Efficient coding
- 키워드
- Image statistics
- 키워드
- Neural coding
- 키워드
- Perception
- 키워드
- Visual system
- 기타저자
- University of Pennsylvania Psychology
- 기본자료저록
- Dissertations Abstracts International. 84-12B.
- 기본자료저록
- Dissertation Abstract International
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
008240612s2023 us |||||||||||||||c||eng d■001000016931829
■00520240214100124
■006m o d
■007cr#unu||||||||
■020 ▼a9798379755898
■035 ▼a(MiAaPQ)AAI30424885
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a153
■1001 ▼aZhang, Lingqi.
■24510▼aSensory Representations Optimized for the Natural Environment▼h[electronic resource]
■260 ▼a[S.l.]:▼bUniversity of Pennsylvania. ▼c2023
■260 1▼aAnn Arbor :▼bProQuest Dissertations & Theses, ▼c2023
■300 ▼a1 online resource(152 p.)
■500 ▼aSource: Dissertations Abstracts International, Volume: 84-12, Section: B.
■500 ▼aAdvisor: Brainard, David H.;Stocker, Alan A.
■5021 ▼aThesis (Ph.D.)--University of Pennsylvania, 2023.
■506 ▼aThis item must not be sold to any third party vendors.
■520 ▼aThe limited resources available to the visual system must be allocated efficiently to support its function. To achieve this, our brain needs to take advantage of the statistical regularities of our visual environment. In this thesis, I systematically explore how different aspects of natural stimulus statistics can impact and determine perceptual behavior and sensory representation in both biological and artificial systems. In Chapter 1, I provide a brief review of the theory of efficient coding, models of natural image statistics, and the interplay between these two fields. In Chapter 2, based on a Bayesian ideal observer model that is constrained by efficient coding, I show how simple stimulus priors can provide a quantitative link between psychophysics and neurophysiology in the domain of speed perception. In Chapter 3, I extend these ideas to the domain of sensory adaptation. In particular, I develop a method to quantify changes in sensory encoding in a tilt illusion experiment, and find that these changes are consistent with an efficient coding account for which the encoding is optimized toward the conditional statistics of orientation based on the surrounding context. In Chapter 4, I generalize the efficient coding principle to fully naturalistic stimuli by building models of natural image statistics and image-computable ideal observers to quantify the information encoded by the early stages of visual encoding. I show how features of the retinal encoding can be explained by an optimal design principle. In Chapter 5, I present a novel algorithm for directly solving the linear optimal coding problem by finding the set of linear measurements that minimize error in a Bayesian image reconstruction problem. This approach improves upon established methods such as principal component analysis and compressed sensing, and provides a unifying perspective. Lastly, in Chapter 6, I discuss open questions and future directions.
■590 ▼aSchool code: 0175.
■650 4▼aCognitive psychology.
■650 4▼aBiology.
■650 4▼aStatistics.
■653 ▼aBayesian inference
■653 ▼aEfficient coding
■653 ▼aImage statistics
■653 ▼aNeural coding
■653 ▼aPerception
■653 ▼aVisual system
■690 ▼a0633
■690 ▼a0306
■690 ▼a0463
■71020▼aUniversity of Pennsylvania▼bPsychology.
■7730 ▼tDissertations Abstracts International▼g84-12B.
■773 ▼tDissertation Abstract International
■790 ▼a0175
■791 ▼aPh.D.
■792 ▼a2023
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T16931829▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
■980 ▼a202402▼f2024
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