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Some aversive characteristics of centrifugally generated gravity.The effective weight of rats was manipulated by centrifugation. Two effective weight levels were obtained. In three escape avoidance conditions a lever press produced a change from a base level of 2.1 g to a response level of 1.1 g. In a punishment condition a response produced a change from a 1.1 g level to a 2.1 g level and in an extinction condition responses had no effect on the 2.1 g effective weight level present. All changes took 30 sec and were maintained for an additional 10 sec before a return to base level was initiated. When responses occurred closer together than the 40 sec, they delayed the return to base level by 40 sec. This 40 sec interval is referred to as response-contingent-time. The response rate and amount of response-contingent-time served as the data. The results confirmed previous data that centrifugation is aversive. The results are interpreted as indicating that the aversiveness is attributable to the increase in effective weight, and that rats can discriminate the different angular velocity-radius of rotation combinations used.
Document ID
19730043704
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Altman, F.
(Kentucky, University Lexington, Ky., United States)
Date Acquired
August 7, 2013
Publication Date
April 1, 1973
Publication Information
Publication: Aerospace Medicine
Volume: 44
Subject Category
Biosciences
Accession Number
73A28506
Funding Number(s)
CONTRACT_GRANT: NGL-18-001-003
Distribution Limits
Public
Copyright
Other

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