Task-control of arousal and the effects of repeated unidirectional angular acceleration on human vestibular responses.

Collins, William E.; Civil Aeromedical Research Institute. Aeronautical Center

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Task-control of arousal and the effects of repeated unidirectional angular acceleration on human vestibular responses.

1963-11-01
By Collins, William E.

[PDF-1.24 MB]

English

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Creators:

Collins, William E.
Corporate Creators:

Civil Aeromedical Research Institute. Aeronautical Center
Subject/TRT Terms:

[+]

Acceleration (Mechanics) Acceleration (Physiology) Adaptability (Psychology)--Testing Adaptation (Psychology) Air Pilots Alertness Angular Acceleration Arithmetic Attention Auditory Perception Aviation Medicine Dark Adaptation Deceleration Depth Perception Distance Perception Electrodes Experiments Eye Eye Fixations Eye Location Eye Movements Habituation (Neuropsychology) Human Subject Testing Night Vision Nystagmus Perception Psychology Reaction Time Rotation Rotational Motion Sensory Stimulation Speed Task Analysis Velocity Vestibular Apparatus Vestibular Function Tests Vibration Vision Vision--Testing Vision Tests Visual Perception
Publication/ Report Number:

AM 63-29 ; DOT/FAA/AM-63/29

AM 63-29 ; DOT/FAA/AM-63/29 Less -
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

Civil Aerospace Medical Institute
Abstract:

Subjects were exposed to a 10-day habituation series of 200 CW accelerations in total darkness while performing attention-demanding tasks. Decelerations were sub-threshold. Preliminary and post-tests indicated that slow-phase nystagmus and duration of the ocular response declined [bidirectionally] as a function of the habituation trials, but frequency of nystagmus increased during stimulus period and for a few seconds thereafter. These changes were approximately equal for both CW and CCW stimulation.

Measurements of subjective velocity were obtained during several pre- and post-trials but never during the habituation series. A decline in the intensity of the sensation to CW acceleration, but not to CCW stimulation, was produced by the habituation series. A second post-test given after one month with no intervening stimulation showed little or no restoration of nystagmus. However, the subjective reaction demonstrated a clear, albeit incomplete pattern of recovery.
Format:

PDF
Collection(s):

FAA Civil Aerospace Medical Institute US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:532584e200ccd58188efcddd0f386e446371c8e1fe06ac9eedeea71462f21394
Download URL:

https://rosap.ntl.bts.gov/view/dot/20881/dot_20881_DS1.pdf
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Task-control of arousal and the effects of repeated unidirectional angular acceleration on human vestibular responses.

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