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Cognitive-Vestibular Interactions: A Review Of Patient Difficulties And Possible Mechanisms, Douglas A. Hanes, Gin Mccollum
Cognitive-Vestibular Interactions: A Review Of Patient Difficulties And Possible Mechanisms, Douglas A. Hanes, Gin Mccollum
Gin McCollum
Cognitive deficits such as poor concentration and short-term memory loss are known by clinicians to occur frequently among patients with vestibular abnormalities. Although direct scientific study of such deficits has been limited, several types of investigations do lend weight to the existence of vestibular-cognitive effects. In this article we review a wide range of studies indicating a vestibular influence on the ability to perform certain cognitive functions. In addition to tests of vestibular patient abilities, these studies include dual-task studies of cognitive and balance functions, studies of vestibular contribution to spatial perception and memory, and works demonstrating a vestibular influence …
Head Tilt-Translation Combinations Distinguished At The Level Of Neurons, Jan E. Holly, Sarah E. Pierce, Gin Mccollum
Head Tilt-Translation Combinations Distinguished At The Level Of Neurons, Jan E. Holly, Sarah E. Pierce, Gin Mccollum
Gin McCollum
Angular and linear accelerations of the head occur throughout everyday life, whether from external forces such as in a vehicle or from volitional head movements. The relative timing of the angular and linear components of motion differs depending on the movement. The inner ear detects the angular and linear components with its semicircular canals and otolith organs, respectively, and secondary neurons in the vestibular nuclei receive input from these vestibular organs. Many secondary neurons receive both angular and linear input. Linear information alone does not distinguish between translational linear acceleration and angular tilt, with its gravity-induced change in the linear …