Visual and vestibular control of locomotion in early and late sensory-deprived cats.

摘要: This study focuses on how the vestibular system intervenes in control of locomotion cat, and evaluates impact visual environment development recovery functions. Bilateral destruction receptors was therefore combined with selective deprivation, both neonatally adult animals. The task specially designed to investigate specific components goal-directed locomotion, such as dynamic balance, keeping a straight course, paw guidance during walking, depending characteristics walking surface. main criterion performance average speed animal when subjected various conditions, including stroboscopic illumination. effects deprivation at an early age were found be no more severe than those later lesions, which indicates that developmental processes involving information do not impinge nonvestibular As vestibular-related functions, they seem partly develop conjunction kinetic cues. For instance, navigation darkness is impaired strobe-reared subjects. Furthermore, cats, signals may used reafferent information, since labyrinthectomized cats walking. However, necessary sufficient for it does depend upon experience, cannot properly handled by channel either or late vestibular-deprived cats. Impairment this balance function explain deficits observed other locomotor control, namely zigzaging difficulties over irregular ground after labyrinthectomy. effect visual: animals, enhanced use made positional cues direction locomotion.