ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2012
Attentional capture? Synchronized feedback signals from the isthmi boost retinal signals to higher visual areas.
Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.
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29 citing papers in PubMed, 57 citations in OpenAlex.
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- Cross-modal enhancement of defensive behavior via parabigemino-collicular projections.Current biology : CB · 2024Article
- 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
- Visual Responses to Moving and Flashed Stimuli of Neurons in Domestic Pigeon (Animals : an open access journal from MDPI · 2022Article
- Directional Preference in Avian Midbrain Saliency Computing Nucleus Reflects a Well-Designed Receptive Field Structure.Animals : an open access journal from MDPI · 2022Article
- Morphology and Dendrite-Specific Synaptic Properties of Midbrain Neurons Shape Multimodal Integration.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2022Article
- Unraveling circuits of visual perception and cognition through the superior colliculus.Neuron · 2021Review
- Pyramidal Neurons of the Zebrafish Tectum Receive Highly Convergent Input From Torus Longitudinalis.Frontiers in neuroanatomy · 2021Article
- Entrainment within neuronal response in optic tectum of pigeon to video displays.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2020Article
- A specialized reciprocal connectivity suggests a link between the mechanisms by which the superior colliculus and parabigeminal nucleus produce defensive behaviors in rodents.Scientific reports · 2020Article
- Pigeons integrate visual motion signals differently than humans.Scientific reports · 2019Article
- Ultrastructural and optogenetic dissection of V1 corticotectal terminal synaptic properties.The Journal of comparative neurology · 2019Article
- Anatomy and Physiology of Neurons in Layer 9 of the Chicken Optic Tectum.Frontiers in neural circuits · 2019Article
- Neural Circuits That Mediate Selective Attention: A Comparative Perspective.Trends in neurosciences · 2018Review
- "Shepherd's crook" neurons drive and synchronize the enhancing and suppressive mechanisms of the midbrain stimulus selection network.Proceedings of the National Academy of Sciences of the United States of America · 2018Article
- 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
- Intrinsic coupling modes reveal the functional architecture of cortico-tectal networks.Science advances · 2015Article
- Gamma oscillations in the midbrain spatial attention network: linking circuits to function.Current opinion in neurobiology · 2015Review
- Cholinergic control of gamma power in the midbrain spatial attention network.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2015Article
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Authors and funding
7 authors at 2 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
When a salient object in the visual field captures attention, the neural representation of that object is enhanced at the expense of competing stimuli. How neural activity evoked by a salient stimulus evolves to take precedence over the neural activity evoked by other stimuli is a matter of intensive investigation. Here, we describe in pigeons (Columba livia) how retinal inputs to the optic tectum (TeO, superior colliculus in mammals), triggered by moving stimuli, are selectively relayed on to the rotundus (Rt, caudal pulvinar) in the thalamus, and to its pallial target, the entopallium (E, extrastriate cortex). We show that two satellite nuclei of the TeO, the nucleus isthmi parvocelullaris (Ipc) and isthmi semilunaris (SLu), send synchronized feedback signals across tectal layers. Preventing the feedback from Ipc but not from SLu to a tectal location suppresses visual responses to moving stimuli from the corresponding region of visual space in all Rt subdivisions. In addition, the bursting feedback from the Ipc imprints a bursting rhythm on the visual signals, such that the visual responses of the Rt and the E acquire a bursting modulation significantly synchronized to the feedback from Ipc. As the Ipc feedback signals are selected by competitive interactions, the visual responses within the receptive fields in the Rt tend to synchronize with the tectal location receiving the "winning" feedback from Ipc. We propose that this selective transmission of afferent activity combined with the cross-regional synchronization of the areas involved represents a bottom-up mechanism by which salient stimuli capture attention.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.