ArticleFrontiers in neural circuits2015
Efficient population coding of naturalistic whisker motion in the ventro-posterior medial thalamus based on precise spike timing.
Article in Frontiers in neural circuits, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Temporal resolution of spike coding in feedforward networks with signal convergence and divergence.PLoS computational biology · 2025Article
- Article
- Contribution of Interneuron Subtype-Specific GABAergic Signaling to Emergent Sensory Processing in Mouse Somatosensory Whisker Barrel Cortex.Cerebral cortex (New York, N.Y. : 1991) · 2022Article
- Sequence Learning Induces Selectivity to Multiple Task Parameters in Mouse Somatosensory Cortex.Current biology : CB · 2021Article
- Impact of higher order network structure on emergent cortical activity.Network neuroscience (Cambridge, Mass.) · 2020Article
- Cortical reliability amid noise and chaos.Nature communications · 2019Article
- Organization of sensory feature selectivity in the whisker system.Neuroscience · 2018Review
- Cliques of Neurons Bound into Cavities Provide a Missing Link between Structure and Function.Frontiers in computational neuroscience · 2017Article
- Thalamic amplification of sensory input in experimental diabetes.The European journal of neuroscience · 2016Article
- Presynaptic Adenosine Receptor-Mediated Regulation of Diverse Thalamocortical Short-Term Plasticity in the Mouse Whisker Pathway.Frontiers in neural circuits · 2016Article
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Authors and funding
4 authors.
Funding
Abstract
The rodent whisker-associated thalamic nucleus (VPM) contains a somatotopic map where whisker representation is divided into distinct neuronal sub-populations, called "barreloids". Each barreloid projects to its associated cortical barrel column and so forms a gateway for incoming sensory stimuli to the barrel cortex. We aimed to determine how the population of neurons within one barreloid encodes naturalistic whisker motion. In rats, we recorded the extracellular activity of up to nine single neurons within a single barreloid, by implanting silicon probes parallel to the longitudinal axis of the barreloids. We found that play-back of texture-induced whisker motion evoked sparse responses, timed with millisecond precision. At the population level, there was synchronous activity: however, different subsets of neurons were synchronously active at different times. Mutual information between population responses and whisker motion increased near linearly with population size. When normalized to factor out firing rate differences, we found that texture was encoded with greater informational-efficiency than white noise. These results indicate that, within each VPM barreloid, there is a rich and efficient population code for naturalistic whisker motion based on precisely timed, population spike patterns.
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