A Study of Individual Variability in Dark Adaptation and Night Vision in Man
FEDERATION OF AMERICAN SOCIETIES FOR EXPERIMENTAL BIOLOGY BETHESDA MD LIFE SCIENCES RESEARCH OFFICE
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The report provides a comprehensive analysis of the significance of individual variation in human night vision capability. It reviews the origin and magnitude of inter- and intra-individual variation in the several physiological and behavioral processes that constitute dark adaptation and scotopic vision. the genetic, somatic, and behavioral factors that exhibit variation and the environmental factors affecting variation are discussed. The report identifies gaps in this knowledge that bear on the requirements for efficient night vision in the soldier. The report suggests that recognition of individual variation is critical to the concept of selecting key individuals for specific duties requiring night vision capability.
- Anatomy and Physiology