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Sensory Representations Optimized for the Natural Environment- [electronic resource]
Sensory Representations Optimized for the Natural Environment - [electronic resource]
Sensory Representations Optimized for the Natural Environment- [electronic resource]

Detailed Information

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  
Bayesian inference
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

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■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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