ArticleScience advances2023
Callosal inputs generate side-invariant receptive fields in the barrel cortex.
Article in Science advances, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Impaired vasopressin neuromodulation of the lateral septum leads to social behavior deficits in Shank3BNature communications · 2025Article
- Bilateral integration in somatosensory cortex is controlled by behavioral relevance.Nature neuroscience · 2025Article
- Symmetry in Frontal But Not Motor and Somatosensory Cortical Projections.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024Article
- Symmetry in frontal but not motor and somatosensory cortical projections.bioRxiv : the preprint server for biology · 2024Article
- Bilateral Whisker Representations in the Primary Somatosensory Cortex in Robo3cKO Mice Are Reflected in the Primary Motor Cortex.Neuroscience · 2024Article
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Authors and funding
8 authors.
Funding
Abstract
Barrel cortex integrates contra- and ipsilateral whiskers' inputs. While contralateral inputs depend on the thalamocortical innervation, ipsilateral ones are thought to rely on callosal axons. These are more abundant in the barrel cortex region bordering with S2 and containing the row A-whiskers representation, the row lying nearest to the facial midline. Here, we ask what role this callosal axonal arrangement plays in ipsilateral tactile signaling. We found that novel object exploration with ipsilateral whiskers confines c-Fos expression within the highly callosal subregion. Targeting this area with in vivo patch-clamp recordings revealed neurons with uniquely strong ipsilateral responses dependent on the corpus callosum, as assessed by tetrodotoxin silencing and by optogenetic activation of the contralateral hemisphere. Still, in this area, stimulation of contra- or ipsilateral row A-whiskers evoked an indistinguishable response in some neurons, mostly located in layers 5/6, indicating their involvement in the midline representation of the whiskers' sensory space.
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