ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2011
Rules of competitive stimulus selection in a cholinergic isthmic nucleus of the owl midbrain.
Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed.
- The dynamics of stimulus selection in the nucleus isthmi pars magnocellularis of avian midbrain network.Scientific reports · 2025Article
- Donut-like organization of inhibition underlies categorical neural responses in the midbrain.Nature communications · 2022Article
- Pyramidal Neurons of the Zebrafish Tectum Receive Highly Convergent Input From Torus Longitudinalis.Frontiers in neuroanatomy · 2021Article
- Article
- Categorical Signaling of the Strongest Stimulus by an Inhibitory Midbrain Nucleus.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2020Article
- Spatial Dependence of Stimulus Competition in the Avian Nucleus Isthmi Pars Magnocellularis.Brain, behavior and evolution · 2019Article
- Selective attention without a neocortex.Cortex; a journal devoted to the study of the nervous system and behavior · 2018Review
- Space-Specific Deficits in Visual Orientation Discrimination Caused by Lesions in the Midbrain Stimulus Selection Network.Current biology : CB · 2017Article
- Spatially precise visual gain control mediated by a cholinergic circuit in the midbrain attention network.Nature communications · 2016Article
- Cholinergic control of gamma power in the midbrain spatial attention network.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2015Article
- Resonant Cholinergic Dynamics in Cognitive and Motor Decision-Making: Attention, Category Learning, and Choice in Neocortex, Superior Colliculus, and Optic Tectum.Frontiers in neuroscience · 2015Article
- Morphology, projection pattern, and neurochemical identity of Cajal's "centrifugal neurons": the cells of origin of the tectoventrogeniculate pathway in pigeon (Columba livia) and chicken (Gallus gallus).The Journal of comparative neurology · 2014Article
- Article
- Spatially reciprocal inhibition of inhibition within a stimulus selection network in the avian midbrain.PloS one · 2014Article
- Attentional capture? Synchronized feedback signals from the isthmi boost retinal signals to higher visual areas.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2012Article
- Responses of tectal neurons to contrasting stimuli: an electrophysiological study in the barn owl.PloS one · 2012Article
- Normalization as a canonical neural computation.Nature reviews. Neuroscience · 2011Review
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3 authors.
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Abstract
In a natural scene, multiple stimuli compete for the control of gaze direction and attention. The nucleus isthmi pars parvocellularis (Ipc) is a cholinergic, midbrain nucleus that is reciprocally interconnected to the optic tectum, a structure known to be involved in the control of gaze and attention. Previous research has shown that the responses of many Ipc units to a visual stimulus presented inside the classical receptive field (RF) can be powerfully inhibited when the strength of a distant, competing stimulus becomes the stronger stimulus. This study investigated further the nature of competitive interactions in the Ipc of owls by using two complementary protocols: in the first protocol, we measured the effects of a distant stimulus on responses to an RF stimulus located at different positions inside the RF; in the second protocol, we measured the effects of a distant stimulus on responses to RF stimuli of different strengths. The first protocol demonstrated that the effect of a competing stimulus is purely divisive: the competitor caused a proportional reduction in responses to the RF stimulus that did not alter either the location or sharpness of spatial tuning. The second protocol demonstrated that, for most units, the strength of this divisive inhibition is regulated powerfully by the relative strengths of the competing stimuli: inhibition was strong when the competitor was the stronger stimulus and weak when the competitor was the weaker stimulus. The data indicate that competitive interactions in the Ipc depend on feedback and a globally divisive inhibitory network.
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