Journal
CURRENT OPINION IN NEUROBIOLOGY
Volume 25, Issue -, Pages 176-186Publisher
CURRENT BIOLOGY LTD
DOI: 10.1016/j.conb.2014.01.014
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Funding
- Spanish Ministry of Economy and Competitiveness [BFU2011-23049]
- European Fund for Regional Development
- Valencia Regional Government [PROMETEO/2011/086]
- Human Frontier Science Program grant Neuroscience of Knowledge [RG0015/2013]
- European Research Council Advanced grant CONCEPT [294498]
- European Union FET grant CORONET [269459]
- Italian Ministry for Universities and Research grant HANDBOT
- Compagnia San Paolo
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Comparison of the functional organization of sensory modalities can reveal the specialized mechanisms unique to each modality as well as processing algorithms that are common across modalities. Here we examine the rodent whisker system. The whisker's mechanical properties shape the forces transmitted to specialized receptors. The sensory and motor systems are intimately interconnected, giving rise to two forms of sensation: generative and receptive. The sensory pathway is a test bed for fundamental concepts in computation and coding: hierarchical feature detection, sparseness, adaptive representations, and population coding. The central processing of signals can be considered a sequence of filters. At the level of cortex, neurons represent object features by a coordinated population code which encompasses cells with heterogeneous properties.
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