Kinestetics

Motor imagery is influenced by individual and contextual factors. We investigated whether the psychophysiological trait of hypnotisability modulates its subjective experience and cortical correlates similarly to what was previously shown for head postures mental images. EEG was acquired in 18 high (highs) and 15 low (lows) hypnotizable subjects (Stanford Hypnotic Susceptibility Scale, A). The experimental conditions were: baseline, a complex arm/hand movement, visual (1st person) and kinesthetic imagery of the movement...

A microsurgical drezotomy can be useful in some selected cases for the treatment of severe and diffuse spasticity in one or several limbs. This technique has been introduced by M. Sindou in 1972, on the basis of human anatomical studies in the dorsal root entry zone (DREZ). The aim of surgery is to interrupt preferentially the peripheral inputs sustaining myotatic and polysynaptic reflexes which are exaggerated in spasticity, and also nociceptive fibers in the lateral part of the DREZ, whilst sparing most of the medial tactile and kinestetic fibers for the dorsal funiculus...

Experiments were made on 7 adult male monkeys under nembutal anaesthesia (20-25 mg/kg, intravenously). The evoked potentials to electrical stimulation (0.5-50 mA) of the skin and kinestetic (5.10(3)-6.10(5)degrees/s2) stimulation of the proximal part of the forearm were recorded in the contralateral primary somatosensory cortex. The data obtained indicated direct relationship between the magnitude of angular acceleration and amplitude-temporary parameters of the kinestetic potentials. The threshold for their detections was equal approximately to 5...