background: the electrocardiogram artifact is a major contamination in the electromyogram signals when electromyogram signal is recorded from upper trunk muscles and because of that the contaminated electromyogram is not useful. objective: removing electrocardiogram contamination from electromyogram signals. methods: in this paper, the clean electromyogram signal, electrocardiogram artifact and...

INTRODUCTION Facial myokymias (FM) are continuous, involuntary, undulating movements of the facial muscles associated with spontaneous electromyographic activity, such as fasciculations and myokymic discharges. They may occur in healthy individuals, or be secondary to multiple sclerosis, posterior fossa tumors, or an inflammatory process. PATIENT AND RESULTS We describe the case of a 31-year-...

This paper examines the use of facial muscle activity (Surface Electromyogram) to recognise speech based commands in English and German language without any audio signals. The system is designed for applications based on speech control for Human Computer Interaction (HCI).The paper presents an effective technique that uses the facial muscle activity of the articulatory muscles and human factors...

Decoding someone's facial expressions provides insights into his or her emotional experience. Recently, Automatic Facial Coding (AFC) software has been developed to provide measurements of expressions. Previous studies provided first evidence for the sensitivity such systems detect responses in study participants. In present experiment, we set out generalise these results affective as they can ...

Populist rhetoric is often portrayed as deeply emotional, aimed at provoking gut‐level, affective responses. It clearly enthuses some voters, while other voters resent it. Yet we know very little about the responses that populist actually evokes. For whom rhetoric, particularly its antiestablishment component, arousing, and who has positive or negative responses? To analyze this, study to proes...

Although most people can identify facial expressions of emotions well, they still differ in this ability. According to embodied simulation theories understanding emotions of others is fostered by involuntarily mimicking the perceived expressions, causing a "reactivation" of the corresponding mental state. Some studies suggest automatic facial mimicry during expression viewing; however, findings...

An improved hands-free cursor control system suitable for use by individuals with spinal dysfunction or spinal cord injury is introduced. The system uses electromyogram (EMG) signals from facial muscles to produce five distinct cursor actions, namely: left, right, up, down and left-click. The new system is derived from a system previously created by our group. Object selection tests are perform...

The objective of this study was to systematically characterize motor units (MUs) of the musculature of the lower face. MU endplate positions and principal muscle fiber orientations relative to facial landmarks were identified. This was done by the analysis of motor unit action potentials (MUAPs) in the surface electromyogram. Thirteen specially trained, healthy subjects performed selective cont...

BACKGROUND There is increasing evidence that variation in the promoter region of the serotonin transporter gene SLC6A4 (i.e., the 5-HTTLPR polymorphism) moderates the impact of environmental stressors on child psychopathology. Emotional reactivity -the intensity of an individual's response to other's emotions- has been put forward as a possible mechanism underlying these gene-by-environment int...