Cited by 25Visual perception and processing mechanismsNeuroscience and Neuropharmacology ResearchNicotinic Acetylcholine Receptors Study

Muscarinic and Nicotinic Contribution to Contrast Sensitivity of Macaque Area V1 Neurons

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Herrero, Jose L., Gieselmann, Marc A., Thiele, Alexander·2017·Frontiers in Neural Circuits

Abstract

Acetylcholine is a neuromodulator that shapes information processing in different cortical and subcortical areas. Cell type and location specific cholinergic receptor distributions suggest that acetylcholine in macaque striate cortex should boost feed-forward driven activity, while also reducing population excitability by increasing inhibitory tone. Studies using cholinergic agonists in anesthetized primate V1 have yielded conflicting evidence for such a proposal. Here we investigated how muscarinic or nicotinic receptor blockade affect neuronal excitability and contrast response functions in awake macaque area V1. Muscarinic or nicotinic receptor blockade caused reduced activity for all contrasts tested, without affecting the contrast where neurons reach their half maximal response (c50). The activity reduction upon muscarinic and nicotinic blockade resulted in reduced neuronal contrast sensitivity, as assessed through neurometric functions. In the majority of cells receptor blockade was best described by a response gain model (a multiplicative scaling of responses), indicating that ACh is involved in signal enhancement, not saliency filtering in macaque V1.

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Crossref · 10.3389/fncir.2017.00106

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  • Effects of cholinergic modulation on neuronal response gain may vary across classes of excitatory neurons.

    “However, the effects of cholinergic modulation on neuronal response gain may vary across classes of excitatory neurons172.”

    From Mechanisms underlying gain modulation in the cortex (2020) · cites this paper as [172]

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Authors
Herrero, J. L., Gieselmann, M. A., & Thiele, A.
Affiliations
Newcastle University (GB)
Corresponding author
Thiele, Alexander
Venue
Frontiers in Neural Circuits
Published
2017-12-19
Volume
11
Pages
106-106
ISSN
1662-5110 (ISSN-L)
OpenAlex
W2779382641
Cited by
25
References
75
Citations by year
2026: 3 · 2025: 2 · 2024: 3 · 2023: 1 · 2022: 3 · 2021: 5 · 2020: 5 · 2019: 2 · 2018: 1
FWCI
1.24
Type
journal article
Language
en
Open access
Locations
  • Frontiers in Neural Circuits (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Newcastle University ePrints (Newcastle Univesity) (cc-by)
Funders
  • Wellcome Trust (093104)
  • Biotechnology and Biological Sciences Research Council (BB/F021399/1)
  • Human Frontier Science Program
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Nicotinic Acetylcholine Receptors Study
Keywords
acetylcholine, muscarinic receptors, nicotinic acetylcholine receptors, contrast sensitivity, primary visual cortex, macaque, cholinergic modulation, neuronal excitability
MeSH terms
Action Potentials, Animals, Macaca mulatta, Male, Mecamylamine, Microelectrodes, Models, Neurological, Neurons, Neuropsychological Tests, Photic Stimulation, Receptors, Muscarinic, Receptors, Nicotinic, Scopolamine, Visual Cortex, Contrast Sensitivity, Muscarinic Antagonists, Nicotinic Antagonists

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