[Statistically significant reproducible differences of pericranial muscles EMG in beta and gamma frequency ranges when different emotional and cognitive states are compared].

Results of comparison of power of EMG of six pericranial muscles in electroencephalographic frequency ranges beta1, beta2 and gamma are presented corresponding to performances of the tasks bound to inductions of affective experiences-external by means of presentation of images and internal by means of autobiographical memoirs revived. The tasks were focused on an induction of affective experiences with different emotional valencies--positive, negative and neutral. The EMG was derived, registered and processed by means of a computer electroencephalography techniques.