ArticleNature communications2023
Distinct neural mechanisms construct classical versus extraclassical inhibitory surrounds in an inhibitory nucleus in the midbrain attention network.
Article in Nature communications, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Visual Stimulus-Specific Adaptation in the Avian Imc and Its Effect on Target Decoding Performance.Animals : an open access journal from MDPI · 2026Article
- Scalable nanofocusing heterojunctions for raptor-inspired on-chip vision perception.Science advances · 2026Article
- Evolutionarily old brainstem neurons are required for the control of selective spatial attention.Nature communications · 2026Article
- The dynamics of stimulus selection in the nucleus isthmi pars magnocellularis of avian midbrain network.Scientific reports · 2025Article
- The barn owl in systems and behavioral neuroscience: Progress and promise.Current opinion in neurobiology · 2025Review
- Large-scale exome sequencing identified 18 novel genes for neuroticism in 394,005 UK-based individuals.Nature human behaviour · 2025Article
- Auditory Competition and Coding of Relative Stimulus Strength across Midbrain Space Maps of Barn Owls.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024Article
- Distinct neural mechanisms construct classical versus extraclassical inhibitory surrounds in an inhibitory nucleus in the midbrain attention network.Nature communications · 2023Article
- Donut-like organization of inhibition underlies categorical neural responses in the midbrain.Nature communications · 2022Article
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Authors and funding
2 authors.
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Abstract
Inhibitory neurons in the midbrain spatial attention network, called isthmi pars magnocellularis (Imc), control stimulus selection by the sensorimotor and attentional hub, the optic tectum (OT). Here, we investigate in the barn owl how classical as well as extraclassical (global) inhibitory surrounds of Imc receptive fields (RFs), fundamental units of Imc computational function, are constructed. We find that focal, reversible blockade of GABAergic input onto Imc neurons disconnects their extraclassical inhibitory surrounds, but leaves intact their classical inhibitory surrounds. Subsequently, with paired recordings and iontophoresis, first at spatially aligned site-pairs in Imc and OT, and then, at mutually distant site-pairs within Imc, we demonstrate that classical inhibitory surrounds of Imc RFs are inherited from OT, but their extraclassical inhibitory surrounds are constructed within Imc. These results reveal key design principles of the midbrain spatial attention circuit and highlight the critical importance of competitive interactions within Imc for its operation.
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