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Document Type

Research

Abstract

As one aspect of a larger problem on the responsiveness of the newborn infant to the external environment, 90 infants, ranging in age from zero to ten days, have been studied under three intensities of light to determine (1) whether there are measurable differences in the amount of activity of the newborn under different light intensities, and (2) what the characteristics and implications of these differences are, provided they exist. The light intensities used may be described as minimal, dim and moderate. The exact strengths at the level of the infants' eyes were determined by means of an illuminometer. Each of the stimuli were presented over a five to six minute period, in contrast to earlier sensory studies on newborns in which the stimuli were of momentary duration. Infants were examined in an experimental cabinet which allowed control of factors other than the one being studied. Activity was measured by means of the stabilimeter-polygraph technique.

Publication Date

1933

Journal Title

Proceedings of the Iowa Academy of Science

Volume

40

Issue

1

First Page

198

Last Page

199

Copyright

© Copyright 1933 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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