This work presents a technique for the analysis of Facial Electromyogram signal activities to classify five different facial expressions for Computer-Muscle Interfacing applications. Facial Electromyogram (FEMG) is a technique for recording the asynchronous activation of neuronal inside the face muscles with non-invasive electrodes. FEMG pattern recognition is a difficult task for the researche...

We have studied the relationship between patient movement and changes in the auditory steady-state evoked potential, upper facial muscle electromyogram (FEMG), electroencephalographic-zero crossing frequency (EEG-ZCF) and heart rate during emergence from anaesthesia. Twelve healthy patients underwent surgery during stable isoflurane-nitrous oxide-oxygen anaesthesia without neuromuscular block. ...

INTRODUCTION To study stimulation-related facial electromyographic (FEMG) activity in intensive care unit (ICU) patients, develop an algorithm for quantifying the FEMG activity, and to optimize the algorithm for monitoring the sedation state of ICU patients. METHODS First, the characteristics of FEMG response patterns related to vocal stimulation of 17 ICU patients were studied. Second, we co...

BACKGROUND Adaptive emotional responses are important in interpersonal relationships. We investigated self-reported emotional experience, physiological reactivity, and micro-facial expressivity in relation to the social nature of stimuli in individuals with schizophrenia (SZ). METHOD Galvanic skin response (GSR) and facial electromyography (fEMG) were recorded in medicated outpatients with SZ...

OBJECTIVES Muscular targets that are deep or inaccessible to surface electromyography (sEMG) require intrinsic recording using fine-wire electromyography (fEMG). It is unknown if fEMG validly record cortically evoked muscle responses compared to sEMG. The purpose of this investigation was to establish the validity and agreement of fEMG compared to sEMG to quantify typical transcranial magnetic ...

Functional electric stimulation is a new method for dynamic rehabilitation of paralyzed muscles. The output of such prosthetic devices needs to be modulated by some index of the muscle movement. In facial paralysis a measure of the muscle contractions of the normal contralateral side seems to be an appropriate input. In the rabbit, we simultaneously measured the compound action potential of the...

INTRODUCTION Cerebral state monitor is a monitor which shows depth of anesthesia in a number between 0-100 as cerebral state index, in which 40-60 is appropriate for general anesthesia. The effect of electromyogram on cerebral state index has not been shown yet. CASE REPORT A 24-year-old Iranian-balooch man admitted in the intensive care unit because of head injury in a car accident. In spite...

Focusing on sadism, we investigated motive dispositions in psychopathy. In a non-clinical sample (N=101) employed novel, multimethod design (self-reports and Facial Electromyography [fEMG]) to assess automatic affective reactions (indexing dispositions) affiliative, antagonistic, sadistic images. Individuals low psychopathy, resembling universal human tendencies, reacted more positively (zygoma...