ArticleiScience2022
Effects of top-down influence suppression on behavioral and V1 neuronal contrast sensitivity functions in cats.
Article in iScience, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Visual Perception and Gamma Oscillations in Cat V1 are Dynamically Correlated in Contrast Sensitivity Functions.Neuroscience bulletin · 2026Article
- Celastrol ameliorates energy metabolism dysfunction of hypertensive rats by dilating vessels to improve hemodynamics.Journal of natural medicines · 2024Article
- Rapidly repeated visual stimulation induces long-term potentiation of VEPs and increased content of membrane AMPA and NMDA receptors in the V1 cortex of cats.Frontiers in neuroscience · 2024Article
- Hierarchical Bayesian perceptual template modeling of mechanisms of spatial attention in central and peripheral cuing.Journal of vision · 2023Article
- Suppression of top-down influence decreases both behavioral and V1 neuronal response sensitivity to stimulus orientations in cats.Frontiers in behavioral neuroscience · 2023Article
- Mechanisms of Surround Suppression Effect on the Contrast Sensitivity of V1 Neurons in Cats.Neural plasticity · 2022Article
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Authors and funding
11 authors.
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Abstract
To explore the relative contributions of higher-order and primary visual cortex (V1) to visual perception, we compared cats' behavioral and V1 neuronal contrast sensitivity functions (CSF) and threshold versus external noise contrast (TvC) functions before and after top-down influence of area 7 (A7) was modulated with transcranial direct current stimulation (tDCS). We found that suppressing top-down influence of A7 with cathode-tDCS, but not sham-tDCS, reduced behavioral and neuronal contrast sensitivity in the same range of spatial frequencies and increased behavioral and neuronal contrast thresholds in the same range of external noise levels. The neuronal CSF and TvC functions were highly correlated with their behavioral counterparts both before and after the top-down suppression. Analysis of TvC functions using the Perceptual Template Model (PTM) indicated that top-down influence of A7 increased both behavioral and V1 neuronal contrast sensitivity by reducing internal additive noise and the impact of external noise.
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