The effects of paregrine on night vision performance.

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Title: The effects of paregrine on night vision performance.
Author: Verplanck, WS
Abstract: The data of the experiment indicate that the use of paredrine is associated with a definite improvement in performance, of the order of magnitude equivalent to that produced by a .2 LU increase in brightness. This may be compared with the .07 LU magnitude of effect indicated in the data of the earlier experiment on paredrine, all subjects in which were highly sophisticated. The experiment does not indicate whether or not the use of paredrine may be associated with deleterious after-effects, or whether its utility is limited by the occurrence of refractive errors, which were absent in the present group.
Description: Citation Status: Active; Citation Classification: Unclassified; Title Classification: Unclassified; Report Classification: Unclassified; Identifier Classification: Unclassified; Abstract Classification: Unclassified; Distribution Limitation(s): 01 - APPROVED FOR PUBLIC RELEASE; Information provided by the Department of Defense and the Defense Technical Information Center ( is considered public information and may be distributed or copied unless otherwise specified. Use of appropriate byline/photo/image credits is requested.
Date: 1944

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