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Author : William Edward Collins
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (89 download)
Download or read book Adaptation to Vestibular Disorientation written by William Edward Collins and published by . This book was released on 1967 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : William E. Collins
Publisher :
ISBN 13 :
Total Pages : 17 pages
Book Rating : 4.:/5 (227 download)
Download or read book Adaptation to Vestibular Disorientation. V. Eye-movements and Subjective Turning Responses to Two Durations of Angular Acceleration written by William E. Collins and published by . This book was released on 1967 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: Influences of the duration of angular acceleration on turning sensations and on nystagmic eye movements which can blur vision are relevant to understanding vestibular reactions during certain aircraft accelerations. Ocular recordings were obtained from human subjects and cats to 4 deg/sec/sec angular accelerations of 8.4 sec and of 36 sec duration. Lateral and vertical canals were stimulated on separate trials with output of both primary and secondary nystagmus greater for the lateral canals. In cats, both lateral- and vertical-canal responses to 36-sec stimuli peaked and then steadily declined after 15-21 sec of angular acceleration. Declines were not apparent in nystagmus of human subjects. In an additional test, humans were given special tasks and cats received d-amphetamine with essentially the same results as described above. Other group differences were noted. Cats consistently demonstrated secondary nystagmus whereas humans did not. After termination of acceleration, primary nystagmus from cats lasted longer and exhibited a greater number of eye movements following 8.4 sec stimuli than following 36 sec stimuli; this consistency was not evident in humans. However, for humans sensations of motion following termination of acceleration were longer for the 8.4 sec stimuli than for 36 sec stimuli. In this regard, nystagmus from cats resembled the subjective reactions of man more than they did the nystagmus of man. (Author).
Author : Fred E. Guedry
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.:/5 (89 download)
Download or read book Adaptation to Vestibular Disorientation written by Fred E. Guedry and published by . This book was released on 1967 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 14 pages
Book Rating : 4.:/5 (966 download)
Download or read book Adaptation to Vestibular Disorientation written by and published by . This book was released on 1967 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gordon E. Funkhouser
Publisher :
ISBN 13 :
Total Pages : 9 pages
Book Rating : 4.:/5 (12 download)
Download or read book Adaptation to Vestibular Disorientation written by Gordon E. Funkhouser and published by . This book was released on 1967 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Fred E. Guedry
Publisher :
ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.:/5 (227 download)
Download or read book Adaptation to Vestibular Disorientation. Vi. Eye-movement and Subjective Turning Responses to Varied Duration of Angular Acceleration written by Fred E. Guedry and published by . This book was released on 1967 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Turning sensations and eye movement responses during angular accelerations may show adaptation effects of significance to understanding vestibular reactions during certain aircraft maneuvers. In this study, a direct relationship found between duration of acceleration and (a) decline of response during acceleration, (b) rate of decline of response after acceleration, and (c) magnitude of secondary reaction, is regarded as an indication of a central process which limits a prolonged vestibular primary reaction. The process is manifested by its influence on relatively basic reflex reactions (nystagmus) in the cat, and is more prominently manifested in man by its influence on sensory perception. (Author).
Author : William Edward Collins
Publisher :
ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.:/5 (89 download)
Download or read book Adaptation to Vestibular Disorientation written by William Edward Collins and published by . This book was released on 1969 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : William Edward Collins
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.:/5 (89 download)
Download or read book Adaptation to Vestibular Disorientation written by William Edward Collins and published by . This book was released on 1965 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 9 pages
Book Rating : 4.:/5 (966 download)
Download or read book Adaptation to Vestibular Disorientation written by and published by . This book was released on 1967 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : William Edward Collins
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.:/5 (89 download)
Download or read book Adaptation to Vestibular Disorientation written by William Edward Collins and published by . This book was released on 1967 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : William Edward Collins
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.:/5 (89 download)
Download or read book Adaptation to Vestibular Disorientation written by William Edward Collins and published by . This book was released on 1966 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : William E. Collins
Publisher :
ISBN 13 :
Total Pages : 21 pages
Book Rating : 4.:/5 (227 download)
Download or read book Adaptation to Vestibular Disorientation. Vii. Special Effects of Brief Periods of Visual Fixation on Nystagmus and Sensations of Turning written by William E. Collins and published by . This book was released on 1967 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: The influences of (a) disorientation experience and (b) brief periods of visual still-fixation were examined in exposing figure skaters and ordinary subjects to various rates of angular acceleration. Both nystagmic eye movements and sensations of turning were recorded. Skaters produced significantly less primary slow-phase eye displacement than did non-skaters, but the groups did not differ in number of eye movements nor in duration of nystagmus. Introduction of the visual still-fixation period significantly shortened primary nystagmus and produced an accentuated secondary nystagmus for both groups. The term 'habituation' (a 'dropping out' of responses), used to define the effects of repeated vestibular stimulation, does not appear to describe completely the active process of change evidenced in the nystagmic tracings presented in this and other studies. Durations of turning sensations were shorter for skaters than for non-skaters. For both groups the period of room illumination, allowing subjects actively to fixate on stationary visual objects, significantly shortened or abruptly terminated the subjective reaction. (Author).
Author : William E. Collins
Publisher :
ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.:/5 (227 download)
Download or read book Adaptation to Vestibular Disorientation. Ii. Nystagmus and Vertigo Following Highvelocity Angular Accelerations written by William E. Collins and published by . This book was released on 1965 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Professional figure skaters who, as part of their daily routine, subject themselves to high levels of disorientation-and vertigo-producing stimuli, were given a series of laboratory tests consisting primarily of caloric irrigations and mild angular accelerations. Electronystamographic recordings and subjective reports (turning sensations and vertigo) were obtained. Contrary to other reports, brisk vestibular responses were obtained, prompting an 'on-ice' study employing telemetry of eye movements to an ENG recorder and motion pictures. Data were obtained during and following normal high-velocity spins on ice. In the absence of opportunities for visual fixation, vigorous nystagmus and disorientation occurred. Thus, even with highly trained subjects, vestibular stimulation can produce disorientation when visual cues are not present. (Author).
Author : William Edward Collins
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.3/5 (91 download)
Download or read book Vestibular Reactions in Cat and Man During and After Angular Acceleration written by William Edward Collins and published by . This book was released on 1967 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ocular nystagmus was recorded in darkness from cat and man during 4-deg/sq sec accelerations about an Earth-vertical axis. Lateral-canal stimulation yielded greater primary and secondary nystagmus than did vertical-canal stimulation. In cat, both lateral- and vertical-canal responses to a 36-second stimuli peaked after 15-21 seconds of angular acceleration, and this was followed by a steady decline. Declines during acceleration were not apparent in nystagmus of man. There was a more consistent secondary nystagmus in cat then in man. In cat, primary after-nystagmus was greater following an 8.4-second stimulus than following a 36-second stimulus. In man, a like difference occurred in the sensation but was not present in nystagmus. In this regard, nystagmus from cat resembled the subjective reactions of man more than they did the nystagmus of man. (Author).
Author : United States. Superintendent of Documents
Publisher :
ISBN 13 :
Total Pages : 1716 pages
Book Rating : 4.E/5 ( download)
Download or read book Monthly Catalog, United States Public Documents written by United States. Superintendent of Documents and published by . This book was released on 1968 with total page 1716 pages. Available in PDF, EPUB and Kindle. Book excerpt: February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Author : William E. Collins
Publisher :
ISBN 13 :
Total Pages : 106 pages
Book Rating : 4.:/5 (319 download)
Download or read book Index to FAA Office of Aerospace Medicine Reports: 1961 Through 2006 written by William E. Collins and published by . This book was released on 2007 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 628 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1968 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
