The Effects of Visual Reference on Adaptation to Coriolis Accelerations PDF Download

Author: J. T. Reason
Publisher:
ISBN:
Category : Coriolis force
Languages : en
Pages : 45

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Author: J. T. Reason
Publisher:
ISBN:
Category :
Languages : en
Pages : 46

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Three groups were exposed to stepwise increments of Coriolis accelerations in three visual modes: Internal Visual Reference (IVR), External Visual Reference (EVR), and Vision-Absent (VA). The subjects in the IVR condition required significantly greater amounts of stimulus exposure to neutralise their illusory subjective reactions. They also suffered a greater loss of well-being, and a more marked incidence of motion sickness than did subjects in the EVR and VA conditions. The 30 subjects who completed the first session were exposed to the same graded cross-coupled stimulation one week later. This time, however, all the subjects were retested under the IVR conditions. All three groups showed some positive transfer of adaptation from Session I to Session II, but only the IVR-IVR combination required significantly fewer head motions to achieve the same level of adaptation on the second occasion. Taken overall, however, the most efficient and least distrubing route to adaptation at the completion of Session II was via the VA-IVR combination. (Author).

Author: H.H. Kornhuber
Publisher: Springer Science & Business Media
ISBN: 3642659209
Category : Psychology
Languages : en
Pages : 686

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The function of the vestibular system is not as obvious as those of vision, hearing, touch or smell. Vestibular dysfunction, however, is clearly apparent where lesions are present. It is probably for this reason that the vestibular sense was not discovered until the nineteenth century and that clinicians have continued to playa major role in basic vestibular research right up to the present. The relationship between basic and clinical research is certainly stronger in the vesti bular field than in that of tactile sensation, for instance, as testified by the work of clinicians as MENIERE, BREUER, BARANY, DEKLEIJN and FRENZEL. In this respect the situation is similar in vestibular physiology and in endocrinology, and for the same reason. This second part of the vestibular volume of the Handbook of Sensory Physio logy will be of interest to neurologists, otologists, neurosurgeons, ophthalmologists and physiotherapists on the one hand, and psychologists, physiologists, engineers and aviation specialists on the other. For a full understanding of Part 2, it is necessary to have assimilated the basic anatomy, physiology, and biochemistry of Part 1.

Author: R. Held
Publisher: Springer Science & Business Media
ISBN: 3642463541
Category : Psychology
Languages : en
Pages : 986

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This volume was designed to focus on the problems of perception and originally was to have been solely edited by Professor Hans-Lukas Teuber who was a member of the editorial board which initiated production of the Handbook. Accordingly, he issued invitations to a number of researchers III perception asking them to contribute chapters written in a style described III his words: " . . . Ire hope that no author lI'ill feel COl/strained to undertake a major search of the literature: he could In'ite, instead. on an area in which he has been quite actire himse?t~ and II'here most of the issues are immediately obt"ious to him. In this Iray, the IITiting of the chapter should be cnjoyable rather than a chore . . it should result in a personal account of the state of a given area rather than in an encyclopedic treatise . . . the field deserves this sort of summary ret'iell", particularly (f it is pointed toward the future and speeds the convergence of det'elopments in sensory physiology and psychological studies of perception, " With the growing burden of national and international commitments includ ing departmental headship, Professor Teuber felt that it would be wise to share the editorial responsibilities for this volume and accordingly, asked Professors Richard Held and Herschel Leibowitz to co-edit the volume with him in the same spirit as outlined in his invitation to authors. They agreed to help in this task.

Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1252

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Author: H. H. Kornhuber
Publisher:
ISBN:
Category : Psychophysics
Languages : en
Pages : 700

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Author: James T. Reason
Publisher:
ISBN:
Category : Coriolis force
Languages : en
Pages : 24

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This investigation was concerned with estimates of the subjective strength of the Coriolis vestibular reaction evoked by 30 deg. lateral head motions at constant angular velocity in the Slow Rotation Room. In the first experiment, a power relation was obtained between geometric mean magnitude estimates of the Coriolis reaction and angular velocity. These estimates tended to be greater when vision was present than in its absence. In both conditions of visual reference, head motions evoking a pitch-forward sensation were more disturbing than those producing a pitch-back sensation. In the second experiment, it was found that the strongest reaction was produced by the return from the left shoulder (counterclockwise rotation), and the next strongest by the return from the right shoulder. Subjective rankings did not differentiate adequately between the strengths of the right and left tilt motions. (Author).

Author: Richard S. Johnston
Publisher:
ISBN:
Category : Space flight
Languages : en
Pages : 512

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Author: North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 194

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Author: William Edward Collins
Publisher:
ISBN:
Category : Orientation (Physiology)
Languages : en
Pages : 24

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