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Neuron. 2015 Oct 7;88(1):110-26. doi: 10.1016/j.neuron.2015.09.041.

Cortical Correlates of Low-Level Perception: From Neural Circuits to Percepts.

Author information

1
Unité Neuroscience Information et Complexité (UNIC), Centre National de la Recherche Scientifique, FRE 3693, 91198 Gif-sur-Yvette, France. Electronic address: fregnac@unic.cnrs-gif.fr.
2
Unité Neuroscience Information et Complexité (UNIC), Centre National de la Recherche Scientifique, FRE 3693, 91198 Gif-sur-Yvette, France.

Abstract

Low-level perception results from neural-based computations, which build a multimodal skeleton of unconscious or self-generated inferences on our environment. This review identifies bottleneck issues concerning the role of early primary sensory cortical areas, mostly in rodent and higher mammals (cats and non-human primates), where perception substrates can be searched at multiple scales of neural integration. We discuss the limitation of purely bottom-up approaches for providing realistic models of early sensory processing and the need for identification of fast adaptive processes, operating within the time of a percept. Future progresses will depend on the careful use of comparative neuroscience (guiding the choices of experimental models and species adapted to the questions under study), on the definition of agreed-upon benchmarks for sensory stimulation, on the simultaneous acquisition of neural data at multiple spatio-temporal scales, and on the in vivo identification of key generic integration and plasticity algorithms validated experimentally and in simulations.

PMID:
26447576
DOI:
10.1016/j.neuron.2015.09.041
[Indexed for MEDLINE]
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