The Time of the Appearance of the Rod-Cone Break in Dark Adaptation Curves as a Function of the Intensity of the Pre-Adapting Light for Three Monochromatic Lights
Abstract
The ability of the human eye to become more sensitive during a stay in the dark is known as dark adaptation. After exposure to a bright light, the eye recovers sensitivity in a way which is graphically represented in the form of a dark adaptation curve. According to the duplicity theory of vision, there are two basic types of receptors in the eye: vis., rods and cones, The dark adaptation curve is likewise composed of two segments. The shape of these dark adaptation curves, in addition to being dependent on the sensitivity of the eye, is also dependent on several stimulus variables. Chief among these are: the duration of pre-adaptation, the intensity level of pre-adaptation, and the spectral composition of the test light. The present experiment concerned itself with the two latter stimulus variables.
Subject Area
Cognitive psychology
Recommended Citation
Marasciullo, David L, "The Time of the Appearance of the Rod-Cone Break in Dark Adaptation Curves as a Function of the Intensity of the Pre-Adapting Light for Three Monochromatic Lights" (1959). ETD Collection for Fordham University. AAI28673339.
https://research.library.fordham.edu/dissertations/AAI28673339
