Skip to main content
bioRxiv
  • Home
  • About
  • Submit
  • ALERTS / RSS
Advanced Search
New Results

Perception and memory have distinct spatial tuning properties in human visual cortex

View ORCID ProfileSerra E. Favila, View ORCID ProfileBrice A. Kuhl, View ORCID ProfileJonathan Winawer
doi: https://doi.org/10.1101/811331
Serra E. Favila
1Department of Psychology, New York University, New York, NY, 10003
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • ORCID record for Serra E. Favila
  • For correspondence: serra.favila@nyu.edu
Brice A. Kuhl
2Department of Psychology, University of Oregon, Eugene, Oregon, 97403
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • ORCID record for Brice A. Kuhl
Jonathan Winawer
1Department of Psychology, New York University, New York, NY, 10003
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • ORCID record for Jonathan Winawer
  • Abstract
  • Full Text
  • Info/History
  • Metrics
  • Preview PDF
Loading

Abstract

Reactivation of earlier perceptual activity is thought to underlie long-term memory recall. Despite evidence for this view, it is unknown whether mnemonic activity exhibits the same tuning properties as feedforward perceptual activity. Here, we leveraged population receptive field models to parameterize fMRI activity in human visual cortex during spatial memory retrieval. Though retinotopic organization was present during both perception and memory, large systematic differences in tuning were also evident. Notably, whereas there was a three-fold decline in spatial precision from early to late visual areas during perception, this property was entirely abolished during memory retrieval. This difference could not be explained by reduced signal-to-noise or poor performance on memory trials. Instead, by simulating top-down activity in a network model of cortex, we demonstrate that this property is well-explained by the hierarchical structure of the visual system. Our results provide insight into the computational constraints governing memory reactivation in sensory cortex.

Competing Interest Statement

The authors have declared no competing interest.

Footnotes

  • ↵* Contact: sef2177{at}columbia.edu

Copyright 
The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-NC-ND 4.0 International license.
Back to top
PreviousNext
Posted April 30, 2020.
Download PDF
Email

Thank you for your interest in spreading the word about bioRxiv.

NOTE: Your email address is requested solely to identify you as the sender of this article.

Enter multiple addresses on separate lines or separate them with commas.
Perception and memory have distinct spatial tuning properties in human visual cortex
(Your Name) has forwarded a page to you from bioRxiv
(Your Name) thought you would like to see this page from the bioRxiv website.
CAPTCHA
This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.
Share
Perception and memory have distinct spatial tuning properties in human visual cortex
Serra E. Favila, Brice A. Kuhl, Jonathan Winawer
bioRxiv 811331; doi: https://doi.org/10.1101/811331
Reddit logo Twitter logo Facebook logo LinkedIn logo Mendeley logo
Citation Tools
Perception and memory have distinct spatial tuning properties in human visual cortex
Serra E. Favila, Brice A. Kuhl, Jonathan Winawer
bioRxiv 811331; doi: https://doi.org/10.1101/811331

Citation Manager Formats

  • BibTeX
  • Bookends
  • EasyBib
  • EndNote (tagged)
  • EndNote 8 (xml)
  • Medlars
  • Mendeley
  • Papers
  • RefWorks Tagged
  • Ref Manager
  • RIS
  • Zotero
  • Tweet Widget
  • Facebook Like
  • Google Plus One

Subject Area

  • Neuroscience
Subject Areas
All Articles
  • Animal Behavior and Cognition (4655)
  • Biochemistry (10307)
  • Bioengineering (7618)
  • Bioinformatics (26203)
  • Biophysics (13453)
  • Cancer Biology (10625)
  • Cell Biology (15348)
  • Clinical Trials (138)
  • Developmental Biology (8456)
  • Ecology (12761)
  • Epidemiology (2067)
  • Evolutionary Biology (16777)
  • Genetics (11361)
  • Genomics (15407)
  • Immunology (10556)
  • Microbiology (25060)
  • Molecular Biology (10162)
  • Neuroscience (54128)
  • Paleontology (398)
  • Pathology (1655)
  • Pharmacology and Toxicology (2877)
  • Physiology (4315)
  • Plant Biology (9204)
  • Scientific Communication and Education (1582)
  • Synthetic Biology (2543)
  • Systems Biology (6753)
  • Zoology (1453)