Cited by 84Functional Brain Connectivity StudiesTactile and Sensory InteractionsVisual perception and processing mechanisms

The Fine-Scale Functional Correlation of Striate Cortex in Sighted and Blind People

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Butt, Omar H., Benson, Noah C., Datta, Ritobrato, Aguirre, Geoffrey K.·2013·The Journal of Neuroscience

Abstract

To what extent are spontaneous neural signals within striate cortex organized by vision? We examined the fine-scale pattern of striate cortex correlations within and between hemispheres in rest-state BOLD fMRI data from sighted and blind people. In the sighted, we find that corticocortico correlation is well modeled as a Gaussian point-spread function across millimeters of striate cortical surface, rather than degrees of visual angle. Blindness produces a subtle change in the pattern of fine-scale striate correlations between hemispheres. Across participants blind before the age of 18, the degree of pattern alteration covaries with the strength of long-range correlation between left striate cortex and Broca's area. This suggests that early blindness exchanges local, vision-driven pattern synchrony of the striate cortices for long-range functional correlations potentially related to cross-modal representation.

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Crossref · 10.1523/jneurosci.0363-13.2013

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  • There was good agreement between predicted phosphene locations based on presurgical analysis and the reported locations of evoked phosphenes.

    “There was also a good agreement between predicted phosphene locations based on our presurgical analysis (refs. 22, 23; yellow area in Figure 5A) and the reported locations of the evoked phosphenes (blue dots with electrode numbers in Figure 5A).”

    From Visual percepts evoked with an intracortical 96-channel microelectrode array inserted in human occipital cortex (2021) · cites this paper as [23]

    The Introduction and Discussion describe using cortical anatomy to predict retinotopic positions in blind and sighted people, which supports the basis for predicting visual-field locations. The paper does not report presurgical phosphene predictions, evoked phosphenes, or agreement between predicted and reported locations; that agreement is presented as the citing authors’ own finding. (LLM, conf=0.76)

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Authors
Butt, O. H., Benson, N. C., Datta, R., & Aguirre, G. K.
Affiliations
University of Pennsylvania (US)
Venue
The Journal of Neuroscience
Published
2013-10-09
Volume
33
Issue
41
Pages
16209-16219
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W1968196148
Cited by
84
References
64
Citations by year
2026: 7 · 2025: 7 · 2024: 10 · 2023: 4 · 2022: 4 · 2021: 12 · 2020: 1 · 2019: 8 · 2018: 2 · 2017: 7 · 2016: 9 · 2015: 10 · 2014: 3
FWCI
4.01
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (EY001583, NS045839)
  • National Institute on Aging (T32AG000255)
  • National Eye Institute (R01EY020516, P30EY001583)
  • National Institute of Neurological Disorders and Stroke (P30NS045839)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Tactile and Sensory Interactions
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
Keywords
primary visual cortex, visual cortex, blindness, early blindness, point spread function, hemispheric lateralization, Broca's area, cross-modal representation, spontaneous neuronal activity, visual angle
MeSH terms
Adult, Aged, Blindness, Brain Mapping, Female, Humans, Image Interpretation, Computer-Assisted, Magnetic Resonance Imaging, Male, Middle Aged, Neural Pathways, Visual Cortex, Young Adult

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