Asymmetry of balance responses to monaural galvanic vestibular stimulation in subjects with vestibular schwannoma

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Asymmetry of balance responses to monaural galvanic vestibular stimulation in subjects with vestibular schwannoma☆

OBJECTIVE We investigated the potential of galvanic vestibular stimulation (GVS) to quantify lateralised asymmetry of the vestibulospinal pathways by measuring balance responses to monaural GVS in 10 subjects with vestibular schwannoma and 22 healthy control subjects. METHODS Subjects standing without vision were stimulated with 3 s, 1 mA direct current stimuli delivered monaurally. The mean ...

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Short-duration galvanic vestibular stimulation evokes prolonged balance responses.

The application of galvanic vestibular stimulation (GVS) evokes distinct responses in lower limb muscles involved in the control of balance. The purpose of this study was to investigate the balance and lower limb muscle responses to short-duration GVS and to determine whether these responses are modulated by small changes in center of gravity (CoG) and baseline muscle activity occurring during ...

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Electrical Vestibular Stimulation after Vestibular Deafferentation and in Vestibular Schwannoma

BACKGROUND Vestibular reflexes, evoked by human electrical (galvanic) vestibular stimulation (EVS), are utilized to assess vestibular function and investigate its pathways. Our study aimed to investigate the electrically-evoked vestibulo-ocular reflex (eVOR) output after bilateral and unilateral vestibular deafferentations to determine the characteristics for interpreting unilateral lesions suc...

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Galvanic vestibular stimulation modifies vection paths in healthy subjects.

The present study aimed at determining whether vestibular inputs contribute to the perception of the direction of self-motion. This question was approached by investigating the effects of binaural bipolar galvanic vestibular stimulation (GVS) on visually induced self-motion (i.e., vection) in healthy subjects. Stationary seated subjects were submitted to optokinetic stimulation inducing either ...

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Habituation to Galvanic Vestibular Stimulation during Gait

Balance requires the integration of proprioceptive, visual, and vestibular sensory inputs. Contributions from the vestibular system are increasingly important when other sensory signals are lacking or erroneous [1]. Galvanic vestibular stimulation (GVS), the application of a small electrical current across the mastoid processes, has been used to apply a stimulus to the vestibular system indepen...

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ژورنال

عنوان ژورنال: Clinical Neurophysiology

سال: 2013

ISSN: 1388-2457

DOI: 10.1016/j.clinph.2013.03.015