Supra-barrel Distribution of Directional Tuning for Global Motion in the Mouse Somatosensory Cortex - Archive ouverte HAL Access content directly
Journal Articles Cell Reports Year : 2018

Supra-barrel Distribution of Directional Tuning for Global Motion in the Mouse Somatosensory Cortex

Abstract

Rodents explore their environment with an array of whiskers, inducing complex patterns of whisker deflections. Cortical neuronal networks can extract global properties of tactile scenes. In the primary somatosensory cortex, the information relative to the global direction of a spatiotemporal sequence of whisker deflections can be extracted at the single neuron level. To further understand how the cortical network integrates multi-whisker inputs, we imaged and recorded the mouse barrel cortex activity evoked by sequences of multi-whisker deflections generating global motions in different directions. A majority of barrel-related cortical columns show a direction preference for global motions with an overall preference for caudo-ventral directions. Responses to global motions being highly sublinear, the identity of the first deflected whiskers is highly salient but does not seem to determine the global direction preference. Our results further demonstrate that the global direction preference is spatially organized throughout the barrel cortex at a supra-columnar scale.
Fichier principal
Vignette du fichier
Vilarchao_2018.pdf (3.01 Mo) Télécharger le fichier
Origin : Publisher files allowed on an open archive

Dates and versions

hal-02061541 , version 1 (26-11-2020)

Identifiers

Cite

Maria Eugenia Vilarchao, Luc Estebanez, Daniel E. Shulz, Isabelle Ferezou. Supra-barrel Distribution of Directional Tuning for Global Motion in the Mouse Somatosensory Cortex. Cell Reports, 2018, 22 (13), pp.3534-3547. ⟨10.1016/j.celrep.2018.03.006⟩. ⟨hal-02061541⟩
29 View
30 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More