In human communication there is often a close relationship between the perception of an emotionally expressive face and the facial response of the viewer himself. Whereas perception and generation of facial expressions have been studied separately with functional imaging methods, no studies exist on their interaction. We combined the presentation of emotionally expressive faces with the instruction to react with facial movements predetermined and assigned. fMRI was used in an event related design to examine healthy subjects while they regarded happy, sad, or neutral faces and were instructed to simultaneously move the corners of their mouths either (a). upwards or (b). downwards, or (c). to refrain from movement. The subjects' facial movements were recorded with an MR-compatible video camera. Movement latencies were shortened in congruent situations (. the presentation of a happy face and combined with upward movements) and delayed in non-congruent situations. Dissonant more than congruent stimuli activated the inferior prefrontal cortex and the somatomotor cortex bilaterally. The congruent condition, in particular when seeing a happy face, activated the medial basotemporal lobes (hippocampus, amygdala, parahippocampal region). We hypothesize that this region facilitates congruent facial movements when an emotionally expressive face is perceived and that it is part of a system for non-volitional emotional facial movements.
Your soft tissue can quite often cause a variety of discomfort, pain and dysfunction around your body from local tenderness, referral pain to other locations of the body, limiting and restricting full range of movement through joints and overall feeling of fatigue and aching pain. There are many reasons as to why our muscles end up in this condition creating dysfunction and pain, some of these include trauma (via injury), poor postures, stress, overuse, fatigue and repetitive and management of muscle pain with Myotherapy is done using a variety of techniques from soft tissue manipulation, trigger point therapy, dry needling, deep tissue massage, hot and cold therapies, muscle stretching, corrective or rehabilitative exercises