Códigos neurales para la percepción

Abstract

Objective. This article describes experiments designed to show the neural codes associated with the perception and processing of tactile information. Development The results of these experiments have shown the neural activity correlated with tactile perception. The neurones of the primary somatosensory cortex (S1) represent the physical attributes of tactile perception. We found that these representations correlated with tactile perception. By means ofintracortical microstimulation we demonstrated the causal relationship between S1 activity and tactile perception. In the motor areas of the frontal lobe is to be found the connection between sensorial and motor representation whilst decisions are being taken. Conclusions. S1 generates neural representations of thesomatosensorystimuli which seen to be sufficient for tactile perception. These neural representations aresubsequently processed by central areas to S1 and seem useful in perception, memory and decision-making.