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Electric-Color Processing in the Electrosensory Lateral Line Lobe
Electric-Color Processing in the Electrosensory Lateral Line Lobe
Electric-Color Processing in the Electrosensory Lateral Line Lobe

Detailed Information

자료유형  
 학위논문 서양
최종처리일시  
20260202104718
ISBN  
9798288839061
DDC  
616
저자명  
Zadina, Abigail Noel.
서명/저자  
Electric-Color Processing in the Electrosensory Lateral Line Lobe
발행사항  
[Sl] : Columbia University, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
215 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-01, Section: B.
주기사항  
Advisor: Sawtell, Nathaniel B.
학위논문주기  
Thesis (Ph.D.)--Columbia University, 2025.
초록/해제  
요약In the electrosense, perception of the electrical qualities of objects relies on detecting modulations in the electric organ discharge (EOD), pulses the fish emits to generate an electric field. However, the electrosense of weakly-electric fish is blurry. Unlike vision, which uses a lens to focus images, electrosensory systems lack a focusing mechanism. Hence, electrical images of behaviorally relevant objects, like prey, vary greatly in amplitude and shape depending on their distance and location relative to the fish's skin. In a scheme analogous to color vision, which relies on comparisons between photoreceptor responses, it has been proposed that fish could represent an object's electrical properties as 'electric-colors' by comparing the amplitude and shape distortions of the object's electric image. Here, using naturalistic stimuli, I recorded local field potentials from the sensory input layers in the active zones of the electrosensory lateral line lobe (ELL). I show that the dorsolateral zone may separately process EOD amplitude and shape information across two layers of granular cells. Additionally, recordings from principal output neurons in the ELL show that EOD amplitude and shape information may be combined in ways not expected based on classic E-cell (excited by electrosensory stimuli) and I-cell (inhibited by electrosensory stimuli) designations. These results highlight the need to re-examine the functional responses of cells in the ELL to account for multiple axes of stimulus information. .
일반주제명  
Neurosciences
일반주제명  
Physiology
일반주제명  
Health sciences
일반주제명  
Clinical psychology
키워드  
Electric fish
키워드  
Electroreception
키워드  
Perceptual constancy
키워드  
Sensory coding
기타저자  
Columbia University Neurobiology and Behavior
기본자료저록  
Dissertations Abstracts International. 87-01B.
전자적 위치 및 접속  
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MARC

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■1001  ▼aZadina,  Abigail  Noel.
■24510▼aElectric-Color  Processing  in  the  Electrosensory  Lateral  Line  Lobe
■260    ▼a[Sl]▼bColumbia  University▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a215  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-01,  Section:  B.
■500    ▼aAdvisor:  Sawtell,  Nathaniel  B.
■5021  ▼aThesis  (Ph.D.)--Columbia  University,  2025.
■520    ▼aIn  the  electrosense,  perception  of  the  electrical  qualities  of  objects  relies  on  detecting  modulations  in  the  electric  organ  discharge  (EOD),  pulses  the  fish  emits  to  generate  an  electric  field.  However,  the  electrosense  of  weakly-electric  fish  is  blurry.    Unlike  vision,  which  uses  a  lens  to  focus  images,  electrosensory  systems  lack  a  focusing  mechanism.    Hence,  electrical  images  of  behaviorally  relevant  objects,  like  prey,  vary  greatly  in  amplitude  and  shape  depending  on  their  distance  and  location  relative  to  the  fish's  skin.  In  a  scheme  analogous  to  color  vision,  which  relies  on  comparisons  between  photoreceptor  responses,  it  has  been  proposed  that  fish  could  represent  an  object's  electrical  properties  as  'electric-colors'  by  comparing  the  amplitude  and  shape  distortions  of  the  object's  electric  image.  Here,  using  naturalistic  stimuli,  I  recorded  local  field  potentials  from  the  sensory  input  layers  in  the  active  zones  of  the  electrosensory  lateral  line  lobe  (ELL).    I  show  that  the  dorsolateral  zone  may  separately  process  EOD  amplitude  and  shape  information  across  two  layers  of  granular  cells.    Additionally,  recordings  from  principal  output  neurons  in  the  ELL  show  that  EOD  amplitude  and  shape  information  may  be  combined  in  ways  not  expected  based  on  classic  E-cell  (excited  by  electrosensory  stimuli)  and  I-cell  (inhibited  by  electrosensory  stimuli)  designations.  These  results  highlight  the  need  to  re-examine  the  functional  responses  of  cells  in  the  ELL  to  account  for  multiple  axes  of  stimulus  information. .
■590    ▼aSchool  code:  0054.
■650  4▼aNeurosciences
■650  4▼aPhysiology
■650  4▼aHealth  sciences
■650  4▼aClinical  psychology
■653    ▼aElectric  fish
■653    ▼aElectroreception
■653    ▼aPerceptual  constancy
■653    ▼aSensory  coding
■690    ▼a0317
■690    ▼a0566
■690    ▼a0622
■690    ▼a0719
■71020▼aColumbia  University▼bNeurobiology  and  Behavior.
■7730  ▼tDissertations  Abstracts  International▼g87-01B.
■790    ▼a0054
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17358552▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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