Evidence map›Paper›PMID 35767997›Full record

ArticleCurrent biology : CB2022

Selective enhancement of neural coding in V1 underlies fine-discrimination learning in tree shrew.

Joseph W Schumacher, Matthew K McCann, Katherine J Maximov, David Fitzpatrick

Open access · greenAbstract read
In one paragraph

Article in Current biology : CB, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
3.4field-weighted citation impact, top 7% of its field
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

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Visual Motion Processing in The Tree Shrew Superior Colliculus.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026
    Article
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  10. Unexpected Retinal Abnormalities in the Cone-Dominant Northern Tree Shrew.Advances in experimental medicine and biology · 2025
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Joseph W SchumacherFunctional Architecture and Development of Cerebral Cortex, Max Planck Florida Institute for Neuroscience, 1 Max Planck Way, Jupiter, FL 33458, USA.
Matthew K McCannFunctional Architecture and Development of Cerebral Cortex, Max Planck Florida Institute for Neuroscience, 1 Max Planck Way, Jupiter, FL 33458, USA.
Katherine J MaximovFunctional Architecture and Development of Cerebral Cortex, Max Planck Florida Institute for Neuroscience, 1 Max Planck Way, Jupiter, FL 33458, USA.
David FitzpatrickFunctional Architecture and Development of Cerebral Cortex, Max Planck Florida Institute for Neuroscience, 1 Max Planck Way, Jupiter, FL 33458, USA. Electronic address: david.fitzpatrick@mpfi.org.
Max Planck Florida Institute for Neuroscience · US

Funding

Functional Synaptic Architecture of Visual CortexR01EY006821 · NEI · MAX PLANCK FLORIDA CORPORATION · PI FITZPATRICK, DAVID · 1987 to 2020
$7.2M
Neuronal population contributions to fine feature discrimination learning and performance in the columnar architecture of visual cortexF32EY028430 · NEI · MAX PLANCK FLORIDA CORPORATION · PI SCHUMACHER, JOSEPH WILLIAM · 2017 to 2019
$184k
NEI NIH HHS F32 EY028430NEI NIH HHS R01 EY006821
6 · The paper itself

Abstract

Visual discrimination improves with training, a phenomenon that is thought to reflect plastic changes in the responses of neurons in primary visual cortex (V1). However, the identity of the neurons that undergo change, the nature of the changes, and the consequences of these changes for other visual behaviors remain unclear. We used chronic in vivo 2-photon calcium imaging to monitor the responses of neurons in the V1 of tree shrews learning a Go/No-Go fine orientation discrimination task. We observed increases in neural population measures of discriminability for task-relevant stimuli that correlate with performance and depend on a select subset of neurons with preferred orientations that include the rewarded stimulus and nearby orientations biased away from the non-rewarded stimulus. Learning is accompanied by selective enhancement in the response of these neurons to the rewarded stimulus that further increases their ability to discriminate the task stimuli. These changes persist outside of the trained task and predict observed enhancement and impairment in performance of other discriminations, providing evidence for selective and persistent learning-induced plasticity in the V1, with significant consequences for perception.

Indexed as

Discrimination LearningVisual CortexAnimalsPhotic StimulationTupaiaTupaiidaeVisual Perceptionneural codingneural discriminationperceptual learningtree shrewvisual cortex

Identifiers

PMID35767997
PMCPMC9378627
OpenAlexW4283701559

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

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.