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133
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ShareScore release 0.9.0
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133 results for “Visual cortex”
Spatial modulation of visual responses arises in cortex with active navigation
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Principles of visual cortex excitatory microcircuit organization
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Retinotopic organization of visual cortex in human infants
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Data from: Brain-state mediated modulation of inter-laminar dependencies in visual cortex
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Data from: Retinotopic-like maps of spatial sound in primary 'visual' cortex of blind human echolocators
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Dynamic stimulation of visual cortex produces form vision in sighted and blind humans
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Laminar specificity and coverage of viral-mediated gene expression restricted to GABAergic interneurons and their parvalbumin subclass in marmoset primary visual cortex
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Data from: Movies reveal the fine-grained organization of infant visual cortex
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Data from: Simple visual stimuli are sufficient to drive responses in action observation and execution neurons in the macaque ventral premotor cortex
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Data from: Cross-modal representation of chewing food in posterior parietal and visual cortex
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Data from: The involvement of the human prefrontal cortex in the emergence of visual awareness
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Data from: Asymmetric distribution of color-opponent response types across mouse visual cortex supports superior color vision in the sky
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Spikiness and animacy as potential organising principles of human ventral visual cortex
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Data from: Functional modules for visual scene segmentation in macaque visual cortex
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Data for: Distinguishing externally- from saccade-induced motion in visual cortex
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Data from: Control of adaptive action selection by secondary motor cortex during flexible visual categorization
<p>Adaptive action selection during stimulus categorization is an important feature of flexible behavior. To examine neural mechanism underlying this process, we trained mice to categorize the spatial frequencies of visual stimuli according to a boundary that changed between blocks of trials in a session. Using a model with a dynamic decision criterion, we found that sensory history was important for adaptive action selection after the switch of boundary. Bilateral inactivation of the secondary motor cortex (M2) impaired adaptive action selection by reducing the behavioral influence of sensory history. Electrophysiological recordings showed that M2 neurons carried more information about upcoming choice and previous sensory stimuli when sensorimotor association was being remapped than when it was stable. Thus, M2 causally contributes to flexible action selection during stimulus categorization, with the representations of upcoming choice and sensory history regulated by the demand to remap stimulus-action association.</p>
data set related to article Preservation of Visual Cortex Plasticity in Retinitis Pigmentosa
<p>This record contains raw data related to article Preservation of Visual Cortex Plasticity in Retinitis Pigmentosa</p>
Plasticity of GABA Inhibition in the Early Visual Cortex of Human Adults: Exp1 dataset
<p>Dataset from Exp1 in "Proulx, Sébastien, Sheynin, Yasha, Hess, Robert, & Farivar, Reza. (2020). Plasticity of GABA Inhibition in the Early Visual Cortex of Human Adults (in preparation).</p> <p>Metadata included in the 'data' variable of the exp1Data.mat file.</p>
Differential activation of c-Fos and Egr1 during development of the mouse visual cortex
<p>Critical periods (CP) in brain development are associated with profound changes in gene expression cascades. Here we examine the expression of the immediate early genes <i>c-Fos</i> and <i>Egr1</i> at different stages of mouse visual cortex (VC) development. Mice 11, 25, and 50 days of age were maintained under standard light-dark conditions, deprived of light for 5 days, or deprived of light for 5 days and then exposed to light for 90 min. Their brains were analyzed at PND16 (before the onset of the CP), PND30 (during the CP) and PND55 (after the CP) to determine the changes in the number of cells expressing <i>c-Fos</i> and <i>Egr1</i> in the binocular primary visual and primary somatosensory cortices. We found highly specific induction of <i>c-Fos </i>expression in the primary VC in response to light. We also observed transient cross-modal activation of <i>c-Fos</i> in the barrel field of the primary somatosensory cortex in response to light before and during the CP; such activation disappeared after the CP. Expression of <i>Egr1</i> was not induced by light in the VC before the CP, but was evident during and after the CP, although the induction was much less pronounced than that of <i>c-Fos</i>. Dynamic changes in <i>c-Fos</i> and <i>Egr1</i> expression may reflect their contribution to the VC plasticity during the CPs of postnatal brain development.</p>
Separable gain control of ongoing and evoked activity in the visual cortex by serotonergic input
<p>Controlling gain of cortical activity is essential to modulate weights between internal ongoing communication and external sensory drive. Here, we show that serotonergic input has separable suppressive effects on the gain of ongoing and evoked visual activity. We combined optogenetic stimulation of the dorsal raphe nucleus (DRN) with wide-field calcium imaging, extracellular recordings, and iontophoresis of serotonin (5-HT) receptor antagonists in the mouse primary visual cortex. 5-HT1A receptors promote divisive suppression of spontaneous activity, while 5-HT2A receptors act divisively on visual response gain and account for normalization of population responses over a range of visual contrasts in awake and anesthetized states. Thus, 5-HT input provides balanced but distinct suppressive effects on ongoing and evoked activity components across neuronal populations. Imbalanced 5-HT1A/2A activation, either through receptorspecific drug intake, genetically predisposed irregular 5-HT receptor density, or change in sensory bombardment may enhance internal broadcasts and reduce sensory drive and vice versa.</p>
ScienceDex guides
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.