The Vestibular System
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چکیده
Information about the position and movement of the body with respect to the external environment is vital for normal bodily function. It allows us, for example, to walk and run upright without falling over, and at the same time to maintain steady fixation on an object that may itself be moving. The speed and precision with which the mammalian brain can gather and use this information is evident in the supreme body control displayed by predators such as cats. When a cat falls from a tree or ledge, it can sense the orientation of its body relative to the ground and maneouvre itself to land feet-first, even when falling from an inverted position.
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مقایسه نتایج آزمون ویدئویی ایمپالس سر در افراد مبتلا به تومورهای سیستم دهلیزی محیطی و مرکزی
Background and purpose: Vestibular Schwannoma (VS) is a lesion in peripheral vestibular system that leads to reduction of Vestibulo Ocular Reflex (VOR) gain and incidence of corrective saccades. Researches showed that the result of Video Head Impulse Test (VHIT) is positive in peripheral vestibular system disorders and negative in central vestibular system disorders. The aim of this study was t...
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Introduction: The majority of the daily life activities involve the concurrent performance of simultaneously challenging motor and cognitive activities, such as talking while walking, which requires the vestibular system for balance. Functional balance allows the brain to interpret and integrate the sensory information from our physical and social environment. This study aimed to investig...
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The vestibular system is important for the development of normal movement reactions, motion tolerance, and motor control for postural alignment, balance, and vision. A vestibular system that is damaged by disease or injury in childhood can have a major impact on a child’s development. In addition, the emergence of vestibular lesions may also lead to cognitive deficits,...
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In an attempt to diminish the intensity of vertigo, this study was designed to reduce the imbalance between the vestibular system on the two sides. By rotating the subjects with a string-activated rotating chair in opposite direction of the dominant side, the dominant side would be inhibited and simultaneously the subordinate ide would be stimulated. Eight patients with vestibular vertigo c...
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Purpose: Sensory systems play an essential role in motor control. The lack of information about each of these systems can affect postural sway. This study aimed to assess balance recovery during the manipulation of somatosensory, visual, and vestibular systems in deaf persons. Methods: Thirty healthy and deaf subjects were selected as samples. Balance recovery strategies in various situations ...
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