The present invention concerns a device (1) for detecting a parafunctional activity and comprising at least a sensor (3, 103) configured to detect a muscular activity and a processor (110) programmed to recognize a parafunctional activity by means of an analysis of the electromyographic signal detected by the sensor. According to the invention, a device for detecting sounds (150, C) is further comprised, configured to recognize a voice emitted by the user and cooperating with the processor.
