Postural responses to vibration of neck muscles in patients with uni- and bilateral vestibular loss

被引:24
作者
Lekhel, H
Popov, K
Bronstein, A
Gresty, M
机构
[1] UCL Natl Hosp Neurol & Neurosurg, MRC, Human Movement & Balance Unit, London WC1N 3BG, England
[2] Russian Acad Sci, Inst Informat Transmiss Problems, Moscow 101447, Russia
关键词
posture; vestibular system; proprioception; muscle vibration; spatial orientation; human;
D O I
10.1016/S0966-6362(98)00012-5
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Postural responses to vibration applied unilaterally to the dorsal neck muscles were recorded with a sway platform in 11 patients with bilateral vestibular loss (BLD), 13 patients with unilateral vestibular lesions (ULD) and 19 normal subjects. In the normals, the vibration induced a forward postural deviation. Vibration failed to induce postural sway in the BLD patients but induced a backwards head movement in 7 patients. In the ULD patients, vibration contralateral to the lesion induced normal forward sway, whereas ipsilateral vibration resulted in sway directed to the side of the lesion and backwards. The findings demonstrate the importance of concurrent vestibular signals in determining the behavioural response to neck afferent input. We propose that in normal subjects the intact vestibular signal gives no confirmation that a head movement has occurred so it is assumed that the lower body has tilted forwards which provokes a compensatory sway. In the total absence of vestibular function the neck signal may represent a real head movement so the preferential response is a head tilt to restore upright posture. The vestibular imbalance in the ULD patients is roughly equivalent to the asymmetrical signals obtained in a normal subject during head rotation to the intact side. The stretch signal induced by ipsi-lesional vibration confirms possible head rotation, thus provoking a compensatory postural sway. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:228 / 236
页数:9
相关论文
共 43 条
[31]   SENSORY INTERACTION TESTING IN PLATFORM POSTUROGRAPHY [J].
NORRE, ME .
JOURNAL OF LARYNGOLOGY AND OTOLOGY, 1993, 107 (06) :496-501
[32]   POSTUROGRAPHY AND THE DIZZY PATIENT - A NEUROLOGICAL STUDY OF 133 PATIENTS [J].
OJALA, M ;
MATIKAINEN, E ;
JUNTUNEN, J .
ACTA NEUROLOGICA SCANDINAVICA, 1989, 80 (02) :118-122
[34]  
Paludetti G, 1989, Acta Otorhinolaryngol Ital, V9, P575
[35]   NYSTAGMUS AND POSTURAL INSTABILITY AFTER HEADSHAKE IN PATIENTS WITH VESTIBULAR DYSFUNCTION [J].
PANOSIAN, MMS ;
PAIGE, GD .
OTOLARYNGOLOGY-HEAD AND NECK SURGERY, 1995, 112 (03) :399-404
[36]   Postural responses to vibration of neck muscles in patients with unilateral vestibular lesions [J].
Popov, K ;
Lekhel, H ;
Bronstein, A ;
Gresty, M .
NEUROSCIENCE LETTERS, 1996, 214 (2-3) :202-204
[37]  
POPOV K E, 1986, Neirofiziologiya, V18, P779
[38]  
PYYKKO I, 1991, ACTA OTO-LARYNGOL, V111, P27
[39]  
REDFERN MS, 1994, J VESTIBUL RES-EQUIL, V4, P221
[40]  
REICKE N, 1992, HNO, V40, P195