As it turns out, people who “wear rose-colored glasses” do literally see things differently! That is, your mood affects your vision.
A University of Toronto vision and mood study, published in the Journal of Neuroscience, provides the first evidence that your mood changes the way your visual system filters perceptual experience.

“Specifically our study shows that when in a positive mood, our visual cortex takes in more information, while negative moods result in tunnel vision,” reported Adam Anderson, a professor at the University of Toronto.
The researchers say that people in a good mood don’t actually see a color change, but they …read more