Evidence map›Paper›PMID 25433915›Full record

ArticleBrain : a journal of neurology2015

Motion area V5/MT+ response to global motion in the absence of V1 resembles early visual cortex.

Sara Ajina, Christopher Kennard, Geraint Rees, Holly Bridge

Abstract read
In one paragraph

Article in Brain : a journal of neurology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

47 citing papers in PubMed.

  1. Article
  2. Article
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  4. No facilitatory effects of transcranial random noise stimulation on motion processing: A registered report.Cortex; a journal devoted to the study of the nervous system and behavior · 2025
    Article
  5. Voxel-Based Lesion-Symptom Mapping Localizes Residual Visual Function in Hemianopia.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  6. Review
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  8. Article
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  10. Article
  11. White matter plasticity following cataract surgery in congenitally blind patients.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  12. Review
  13. Article
  14. Review
  15. Neural Mechanisms of Visual Field Recovery after Perceptual Training in Cortical Blindness.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2022
    Article
  16. Article
  17. Article
  18. Article
  19. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Sara Ajina1 FMRIB Centre, University of Oxford, UK 2 Nuffield Department of Clinical Neurosciences, University of Oxford, UK sara.ajina@ndcn.ox.ac.uk.
Christopher Kennard2 Nuffield Department of Clinical Neurosciences, University of Oxford, UK.
Geraint Rees3 Wellcome Trust Centre for Neuroimaging, University College London, UK 4 Institute of Cognitive Neuroscience, University College London, UK.
Holly Bridge1 FMRIB Centre, University of Oxford, UK 2 Nuffield Department of Clinical Neurosciences, University of Oxford, UK.

Funding

Wellcome Trust 091593Wellcome Trust 096001Wellcome Trust 100227
6 · The paper itself

Abstract

Motion area V5/MT+ shows a variety of characteristic visual responses, often linked to perception, which are heavily influenced by its rich connectivity with the primary visual cortex (V1). This human motion area also receives a number of inputs from other visual regions, including direct subcortical connections and callosal connections with the contralateral hemisphere. Little is currently known about such alternative inputs to V5/MT+ and how they may drive and influence its activity. Using functional magnetic resonance imaging, the response of human V5/MT+ to increasing the proportion of coherent motion was measured in seven patients with unilateral V1 damage acquired during adulthood, and a group of healthy age-matched controls. When V1 was damaged, the typical V5/MT+ response to increasing coherence was lost. Rather, V5/MT+ in patients showed a negative trend with coherence that was similar to coherence-related activity in V1 of healthy control subjects. This shift to a response-pattern more typical of early visual cortex suggests that in the absence of V1, V5/MT+ activity may be shaped by similar direct subcortical input. This is likely to reflect intact residual pathways rather than a change in connectivity, and has important implications for blindsight function. It also confirms predictions that V1 is critically involved in normal V5/MT+ global motion processing, consistent with a convergent model of V1 input to V5/MT+. Historically, most attempts to model cortical visual responses do not consider the contribution of direct subcortical inputs that may bypass striate cortex, such as input to V5/MT+. We have shown that the signal change driven by these non-striate pathways can be measured, and suggest that models of the intact visual system may benefit from considering their contribution.

Indexed as

AdultAgedBlindnessBrain InjuriesCase-Control StudiesEye MovementsFemaleFunctional LateralityHumansImage Processing, Computer-AssistedMagnetic Resonance ImagingMaleMiddle AgedMotion PerceptionPerceptual DisordersPhotic Stimulationfunctional MRIhemianopiamotion coherencesubcorticalvisual cortex

Identifiers

PMID25433915
PMCPMC4285193

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.