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Physiol Rep ; 4(11)2016 Jun.
Article in English | MEDLINE | ID: mdl-27288058

ABSTRACT

In this study, we propose to analyze the peripheral vibrissal system specificity through its neuronal responses. Receiver operating characteristics (ROC) curve analyses were used, which required the implementation of a binary classifier (artificial neural network) trained to identify the applied stimulus. The training phase consisted of the observation of a predetermined amount of vibrissal sweeps on two surfaces of different texture and similar roughness. Our results suggest that the specificity of the peripheral vibrissal system easily permits the discrimination between perceived stimuli, quantified through neuronal responses, and that it can be evaluated through an ROC curve analysis. We found that such specificity makes a linear binary classifier capable of detecting differences between stimuli with five sweeps at most.


Subject(s)
Afferent Pathways/physiology , Neurons, Afferent/physiology , Vibrissae/innervation , Animals , Models, Theoretical , Rats , Rats, Wistar , Somatosensory Cortex/physiology
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