Elise,

How fast will the changes occur? Inattentional Blindness and/or Change- Blindness (as well as Change-Blindness-Blindness*) may come into play. In short, people will be unable to detect gradual changes in brightness. Tons of research out there...

See "Gradual Changes to Scenes" for demos of gradual changes in color and gradual changes in brightness (adding/deleting objects):
http://viscog.beckman.uiuc.edu/djs_lab/demos.html

*Change Blindness Blindness: When armed with an understanding of Change Blindness, most people still believe they will be able to detect the changes.

Regards, Shep McKee


On Jun 4, 2008, at 3:09 PM, Elise Edson wrote:
My team has received a request from the mechincal engineering team to help them understand how the human eye perceives relative brightness of light.
Specifically, how sensitive is the human eye to changes in brightness?

An initial literature search on ACM & Google did not yield results. Can anyone recommend any articles or other resources, or does anyone know about
related research on this topic?

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