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Romo, Ranulfo; Lemus, Luis; de Lafuente, Victor (2012)

SENSE, MEMORY, AND DECISION-MAKING IN THE SOMATOSENSORY CORTICAL NETWORK

Curr. Opin. Neurobiol. 22(6):914-919
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The brain constructs representations of objects and concepts based in sensory information combined with experience. This mental process, that we call perception, is the result of a chain of events consisting of phenomena such as detection, memory, discrimination, categorization and decision-making. Although the phenomenon of perception is not necessarily dependent on a given sensory modality (e.g. visual perception, auditory, tactile), single sensory models are indispensable for studying the neural mechanisms that generate it. The somatosensory system is a suitable model for studying the manner in which presentation of a single physical variable (e.g. vibration) triggers a perceptual process. Here, we discuss some recent studies in the somatosensory system that in our view, constitute a breakthrough to understanding decision making.