Vestibular Evoked Myogenic Potentials (VEMPs) have recently become a popular component of the audiovestibular test battery of many neurology, otolaryngology, and audiology laboratories and clinics. Traditional VEMPs, resulting from the vestibulo-collic reflex, are evoked by intense acoustic stimuli presented via air or bone conduction and recorded from the activated ipsilateral neck musculature...

OBJECTIVE To compare and characterise abnormalities for short latency vestibular evoked myogenic potentials (VEMPs) elicited by air- (AC) and two differing types of bone-conducted (BC) stimuli during vestibular neuritis (VN). METHODS AC (500Hz short tone bursts) and two BC stimuli (500Hz at the forehead and impulses at the mastoids) were used to evoke cervical and ocular potentials (cVEMPs an...

Modern diagnostic methods such as video head impulse test and cervical and ocular vestibular evoked myogenic potentials allow to measure canal and otolith function quantitatively and objectively. These methods contribute to a complex assessment of the functional integrity of all 5 sensory elements of the vestibular organ for the first time. Moreover, in combination with additional vestibular te...

1) Master’s Degree in Infectology and Tropical Medicine by the Universidade Federal de Minas Gerais. Speech Therapist. Sponsored by CNPq. Ph.D. Mode Sandwith 2) PhD in Biophysics and concentration area in Medical Physics and Otoneurology, Leiden University, The Netherlands. Professor of Otoneurology, Departament of Otorhinolaryngology, University of Maastricht, The Netherlands. 3) PhD in Infect...

An impulsive acceleration stimulus, previously shown to activate vestibular afferents, was applied to the mastoid. Evoked EMG responses from the soleus muscles in healthy subjects (n = 10) and patients with bilateral vestibular dysfunction (n = 3) were recorded and compared with the effects of galvanic stimulation (GVS). Subjects were stimulated while having their eyes closed, head rotated, and...

Percutaneous electrical vestibular stimulation evokes reflexive responses in appendicular muscles that are suppressed during tasks in which the muscles are not contributing to balance control. In neck muscles, which stabilize the head on the torso and in space, it is unclear whether similar postural task dependence shapes vestibular reflexes. We investigated whether vestibulocollic reflexes are...

In rat brainstem slices, we investigated the effects of low-frequency stimulation (LFS) of the primary vestibular afferents on the amplitude of the field potentials evoked in the medial vestibular nuclei (MVN). LFS induced long-term effects, the sign of which depended on whether the vestibular neurons were previously conditioned by HFS. In unconditioned slices, LFS evoked modifications of the r...

50 Percutaneous electrical vestibular stimulation evokes reflexive responses in appendicular 51 muscles that are suppressed during tasks where the muscles are not contributing to balance 52 control. In neck muscles, which stabilize the head on the torso and in space, it is unclear if 53 similar postural task dependence shapes vestibular reflexes. We investigated whether 54 vestibulocollic refle...