Vibrissal roughness discrimination is barrelcortex-dependent
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Cited by (100)
Tactile cognition in rodents
2023, Neuroscience and Biobehavioral ReviewsEffects of enriched housing on the neuronal morphology of mice that lack zinc transporter 3 (ZnT3) and vesicular zinc
2020, Behavioural Brain ResearchCitation Excerpt :This suggests that most behavioural abnormalities in these mice are mediated not by gross changes in neuronal morphology, but by changes on a smaller scale at the level of neurotransmission, which vesicular zinc has been shown to modulate through its effects on several different receptors [34,50,51]. The exception, based on our present findings, might be the impairment in whisker-mediated texture discrimination [25], which could be related to the morphological abnormality we observed in the barrel cortex, given that texture discrimination is a barrel-cortex dependent function [52]. To speculate, it is possible that an aberrant increase in dendritic length could result in a reduction in the specificity of the sensory input received by pyramidal neurons in barrel cortex, contributing to an impairment in discriminating between fine differences in texture.
Making sense of sensory evidence in the rat whisker system
2020, Current Opinion in NeurobiologyTexture Identification by Bounded Integration of Sensory Cortical Signals
2019, Current BiologyCitation Excerpt :Treating the nervous system as a “black box,” our recent study found that the rat takes a decision when the accumulated quantity of vibrissal evidence for one texture reaches a boundary [3]. Here, we focus on somatosensory cortex, critical to texture perception [16]. Knowing that rats ultimately decided based on an evidence threshold, our strategy was to determine whether their behavior could be better explained by the quantity of signal within somatosensory cortex at the moment of choice or else by positing a downstream accumulator.
Signaling by Synaptic Zinc is Required for Whisker-Mediated, Fine Texture Discrimination
2018, NeuroscienceCitation Excerpt :This suggests that normal signaling by synaptic zinc is essential for determining the sensitivity of vibrissae-mediated behavior. The somatosensory (barrel) cortex is necessary for texture discrimination (Guic-Robles et al., 1992; Kleinfeld et al., 2006). The level of acuity in texture discrimination depends on the integration of sensory information from multiple whiskers (Armstrong-James et al., 1992).