Popov K E, Smetanin B N, Shlykov V Iu
Neirofiziologiia. 1991;23(3):321-7.
Transcutaneous electrical stimulation of the labyrinth induced apparent motion of a stationary light source in darkness in normal subjects. This effect is similar to the oculogyric illusion induced by rotatory vestibular stimulation. Monaural anodal stimulation of the right labyrinth evoked apparent movement of the target to the left, whereas cathodal stimulation induced opposite illusion. The threshold current was 0.35-0.6 mA. Binaural bipolar stimuli induced illusory target motion directed to the side of the cathode, the threshold decreased 1.5-2.5 times. Binaural monopolar stimulation induced vertical apparent displacement of a target, the threshold being 1.4-3.0 mA. The amplitude and velocity of illusory target motion increased with current. The subject eyes began to move with much higher currents than those necessary for illusory sensation. It is therefore suggested that the visual illusion is related not to vestibulo-visual interaction but to vestibular effects on the spatial perception system.
经皮电刺激迷路在正常受试者中可在黑暗中诱发静止光源的明显运动。这种效应类似于旋转前庭刺激所诱发的眼震幻觉。右迷路的单耳阳极刺激诱发目标向左的明显运动,而阴极刺激则诱发相反的幻觉。阈值电流为0.35 - 0.6 mA。双耳双极刺激诱发指向阴极一侧的虚幻目标运动,阈值降低1.5 - 2.5倍。双耳单极刺激诱发目标的垂直明显位移,阈值为1.4 - 3.0 mA。虚幻目标运动的幅度和速度随电流增加。受试者眼睛开始移动时的电流比产生虚幻感觉所需的电流高得多。因此,有人认为视觉幻觉与前庭 - 视觉相互作用无关,而是与前庭对空间感知系统的影响有关。