Toupet M, Pialoux P
Ann Otolaryngol Chir Cervicofac. 1981;98(7-8):343-51.
Vertical nystagmus provoked by simultaneous bilateral caloric stimulation has been known since 1907 (Bàràny). However, if a controlled and calibrated injection os water at 44 degrees C or 30 degrees C for 30 seconds at a flow rate of 250 ml/minute is given in normal subjects, this stimulus is insufficient to provoke a response, whilst in subjects with a central vestibular disorder there appear upward vertical movements with hot stimulation and downward movements with cold stimulation. The degree of this response is proportional to the degree of horizontal nystagmic responses to classical unilateral caloric tests. The authors feel that vertical nystagmic responses to simultaneous bilateral caloric stimulation reflect a loss of control of the vestibular reflex activity of the superior semicircular canals.
自1907年（巴兰尼）以来，人们就知道双侧同时进行冷热试验会诱发垂直性眼球震颤。然而，在正常受试者中，以250毫升/分钟的流速，注入44摄氏度或30摄氏度的水30秒，这种受控且校准过的刺激不足以引发反应，而在前庭中枢性疾病患者中，热刺激会出现向上的垂直运动，冷刺激则会出现向下的运动。这种反应的程度与经典单侧冷热试验中水平性眼球震颤反应的程度成正比。作者认为，双侧同时冷热刺激诱发的垂直性眼球震颤反应反映了上半规管前庭反射活动控制的丧失。
