Cited by 248Visual perception and processing mechanismsNeuroscience and Neuropharmacology ResearchNeural dynamics and brain function

The Emergence of Contrast-Invariant Orientation Tuning in Simple Cells of Cat Visual Cortex

Open access
Finn, Ian M., Priebe, Nicholas J., Ferster, David·2007·Neuron

Abstract

Simple cells in primary visual cortex exhibit contrast-invariant orientation tuning, in seeming contradiction to feed-forward models that rely on lateral geniculate nucleus (LGN) input alone. Contrast invariance has therefore been thought to depend on the presence of intracortical lateral inhibition. In vivo intracellular recordings instead suggest that contrast invariance can be explained by three properties of the excitatory pathway. (1) Depolarizations evoked by orthogonal stimuli are determined by the amount of excitation a cell receives from the LGN, relative to the excitation it receives from other cortical cells. (2) Depolarizations evoked by preferred stimuli saturate at lower contrasts than the spike output of LGN relay cells. (3) Visual stimuli evoke contrast-dependent changes in trial-to-trial variability, which lead to contrast-dependent changes in the relationship between membrane potential and spike rate. Thus, high-contrast, orthogonally oriented stimuli that evoke significant depolarizations evoke few spikes. Together these mechanisms, without lateral inhibition, can account for contrast-invariant stimulus selectivity.

Integrity signals

Registry

Crossref · 10.1016/j.neuron.2007.02.029

Cites

60 of 60 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Contrast-invariant orientation tuning of cortical neurons for visual stimuli is a well-characterized example of stable encoding of orientation regardless of changes in contrast.

    “Contrast-invariant orientation tuning of cortical neurons for visual stimuli is a well-characterized example of stable encoding of one feature (in this case, orientation), regardless of changes in stimulus context (in this case, contrast)10–12.”

    From Mechanisms underlying gain modulation in the cortex (2020) · cites this paper as [10]

  • Vm fluctuations may contribute to contrast-invariant tuning in neurons of the visual cortex of cats and rodents.

    “These fluctuations may contribute to contrast-invariant tuning in neurons of the visual cortex of cats and rodents10,13,63,64.”

    From Mechanisms underlying gain modulation in the cortex (2020) · cites this paper as [10]

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Finn, I. M., Priebe, N. J., & Ferster, D.
Affiliations
Northwestern University (US)
Corresponding author
Ferster, David
Venue
Neuron
Publisher
Elsevier BV
Published
2007-04
Volume
54
Issue
1
Pages
137-152
ISSN
0896-6273 (ISSN-L)
OpenAlex
W2146353372
Cited by
248
References
60
Citations by year
2026: 3 · 2025: 13 · 2024: 11 · 2023: 7 · 2022: 9 · 2021: 11 · 2020: 10 · 2019: 18 · 2018: 8 · 2017: 10 · 2016: 17 · 2015: 16 · 2014: 9 · 2013: 22 · 2012: 25
FWCI
7.17
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute of Mental Health (P20 MH066239)
  • National Eye Institute (R01 EY04726)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
Keywords
contrast invariance, orientation tuning, simple cells, primary visual cortex, lateral geniculate nucleus, depolarization, spike frequency, trial-to-trial variability, membrane potential, feedforward models, cats
MeSH terms
Animals, Cats, Female, Geniculate Bodies, Membrane Potentials, Models, Neurological, Neural Inhibition, Neurons, Orientation, Photic Stimulation, Visual Cortex, Visual Pathways, Contrast Sensitivity, Patch-Clamp Techniques

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review