ArticleJournal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology2011
Response properties of visual neurons in the turtle nucleus isthmi.
Article in Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 21 citations in OpenAlex.
- Cross-modal enhancement of defensive behavior via parabigemino-collicular projections.Current biology : CB · 2024Article
- The Ecological View of Selective Attention.Frontiers in integrative neuroscience · 2022Article
- Single-Cell Membrane Potential Fluctuations Evince Network Scale-Freeness and Quasicriticality.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2019Article
- Behavioral Evidence and Neural Correlates of Perceptual Grouping by Motion in the Barn Owl.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2018Article
- The turtle visual system mediates a complex spatiotemporal transformation of visual stimuli into cortical activity.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2018Article
- Induced cortical oscillations in turtle cortex are coherent at the mesoscale of population activity, but not at the microscale of the membrane potential of neurons.Journal of neurophysiology · 2017Article
- Network activity influences the subthreshold and spiking visual responses of pyramidal neurons in the three-layer turtle cortex.Journal of neurophysiology · 2017Article
- Adaptation modulates correlated subthreshold response variability in visual cortex.Journal of neurophysiology · 2017Article
- Adaptation towards scale-free dynamics improves cortical stimulus discrimination at the cost of reduced detection.PLoS computational biology · 2017Article
- Turtle Dorsal Cortex Pyramidal Neurons Comprise Two Distinct Cell Types with Indistinguishable Visual Responses.PloS one · 2015Article
- Recurrent antitopographic inhibition mediates competitive stimulus selection in an attention network.Journal of neurophysiology · 2011Article
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Authors and funding
4 authors at 2 institutions in 2 countries.
Funding
Abstract
The optic tectum holds a central position in the tectofugal pathway of non-mammalian species and is reciprocally connected with the nucleus isthmi. Here, we recorded from individual nucleus isthmi pars parvocellularis (Ipc) neurons in the turtle eye-attached whole-brain preparation in response to a range of computer-generated visual stimuli. Ipc neurons responded to a variety of moving or flashing stimuli as long as those stimuli were small. When mapped with a moving spot, the excitatory receptive field was of circular Gaussian shape with an average half-width of less than 3°. We found no evidence for directional sensitivity. For moving spots of varying sizes, the measured Ipc response-size profile was reproduced by the linear Difference-of-Gaussian model, which is consistent with the superposition of a narrow excitatory center and an inhibitory surround. Intracellular Ipc recordings revealed a strong inhibitory connection from the nucleus isthmi pars magnocellularis (Imc), which has the anatomical feature to provide a broad inhibitory projection. The recorded Ipc response properties, together with the modulatory role of the Ipc in tectal visual processing, suggest that the columns of Ipc axon terminals in turtle optic tectum bias tectal visual responses to small dark changing features in visual scenes.
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