This study examined the validity of the Postrotary Nystagmus (PRN) test as a measure of vestibular functioning by examining the relations of scores from the PRN test with those from other variables measuring similar functions and through conducting a group comparison study. The PRN test is one of 17 tests included in the Sensory Integration and Praxis Tests (SIPT). Using SIPT scores from 575 ch...

background :preterm birth is a significant global health problem with serious short- and long-term consequences. this study examined the long term effects of preterm birth on vestibular evoked myogenic potentials (vemps) among preschool-aged children.   methods : thirty-one children with preterm and 20 children with term birth histories aged 5.5 to 6.5 years were studied. each child underwent v...

UNLABELLED Hormonal disorders in the menstrual cycle can affect labyrinthine fluid homeostasis, causing balance and hearing dysfunctions. STUDY DESIGN Clinical prospective. AIM compare the results from vestibular tests in young women, in the premenstrual and postmenstrual periods. MATERIALS AND METHODS twenty women were selected with ages ranging from 18 to 35 years, who were not using an...

Audiological and vestibular testing plays an important role in diagnosis of Menière’s disease,as disease per se and as staging diagnosis. A battery of tests are recommended in order to have a better evaluation of the disease. Audiological testing includes pure tone audiometry, with highlights of bone conduction especially in acute episodes of Menière’s disease, speech audiometry and glycerol te...

Balance impairment is the most common motor symptom across the spectrum of severity of traumatic brain injury [1]. The severity of the balance dysfunction is dependent upon the extent and location of the injury to the brain and surrounding structures. The ability to maintain balance is determined by input from visual, vestibular, sematosensory, cognitive, and emotional systems, as well as the a...

PURPOSE OF REVIEW This review covers the articles published between 2010 and early 2011 that presented new findings on inner-ear efferents and their ability to modulate hair cell function. RECENT FINDINGS Studies published within the review period have increased our understanding of efferent mechanisms on hair cells in the cochlear and vestibular sensory epithelium and provide insights on eff...

BACKGROUND A few studies in humans suggest that changes in stimulation of the balance organs of the inner ear (the 'vestibular system') can disrupt numerical cognition, resulting in 'dyscalculia', the inability to manipulate numbers. Many studies have also demonstrated that patients with vestibular dysfunction exhibit deficits in spatial memory. OBJECTIVES It is suggested that there may be a ...

Unpleasant visual symptoms including oscillopsia and dizziness may occur when there is unexpected motion of the visual world across the subject's retina ("retinal slip") as in an acute spontaneous nystagmus or on head movement with an acute ophthalmoplegia. In contrast, subjects with chronic ocular dysmotility, e.g., congenital nystagmus or chronic progressive external ophthalmoplegia, are typi...

OBJECTIVE The aim of this study was to determine saccular dysfunction by measuring cervical vestibular-evoked myogenic potentials (cVEMP) and to correlate abnormality of cVEMP with results of other vestibular function tests in lateral medullary infarction (LMI). METHODS We recorded cVEMP in 21 patients with LMI documented on MRI. cVEMP was induced by a short tone burst and was recorded in con...