Related Experiment Video
Updated: Aug 17, 2026

Visualizing Visual Adaptation
Published on: April 24, 2017
Color and brightness fade-out in the Ganzfeld is wavelength dependent
1Department of Biomedical Engineering, Technion, Israel Institute of Technology, Haifa.
Abstract:
When watching a monochromatic Ganzfeld, three wavelength-related phenomena are perceived: (1) the field turns achromatic; (2) the initially bright field fades into a dark or a foggy, gray field; and (3) a sensation of an additional darkness is experienced upon light turn off. When a short wavelength is viewed, fading times are long and the sensation of additional darkness is strong while the inverse is true for long wavelengths viewing. At each wavelength, the magnitudes of all three phenomena are linearly related to the logarithm of the stimulus intensity. Possible physiological mechanisms underlying these phenomena are discussed.
More Related Videos
11:51Engineering 'Golden' Fluorescence by Selective Pressure Incorporation of Non-canonical Amino Acids and Protein Analysis by Mass Spectrometry and Fluorescence
Published on: April 27, 2018
10:09EasyFiji: A Graphical Interface for User-Friendly Fluorescence Image Processing in Fiji
Published on: February 20, 2026
Related Concept Videos
The Wave Nature of Light
Photoelectric Effect
Emission Spectra
The de Broglie Wavelength
UV–Vis Spectroscopy of Conjugated Systems
One of the factors influencing λmax is the extent of conjugation in the...
Color Vision