The present invention concerns a device for monitoring the electrophysiological activity of a subject, in particular for diagnosis or monitoring of epilepsy, comprising: - a means for measuring brain electrical activity; - a means for measuring the electrical activity of the masticatory muscles; - an acquisition means configured to acquire, in a synchronised manner, the signals measured by the means for measuring brain electrical activity and by the means for measuring the electrical activity of the masticatory muscles; - a means for processing the signals; and - a means for transmitting the electrical signals acquired by the acquisition means to said means for processing the signals; said means for processing the signals being configured to detect, from among the signals measured by the means for measuring brain electrical activity, the signals measured by the means for measuring the electrical activity of the masticatory muscles.
DEVICE FOR MONITORING THE ELECTROPHYSIOLOGICAL ACTIVITY OF A SUBJECT