People who feel blue could be seeing gray.
Researchers have discovered victims of depression have trouble detecting the contrast between black and white.
Apparently, retinas of depressed people are less sensitive to changing light patterns.
The discovery could lead to more accurate diagnosis of depression.
Viewers with disabilities can get assistance accessing this station's FCC Public Inspection File by contacting the station with the information listed below. Questions or concerns relating to the accessibility of the FCC's online public file system should be directed to the FCC at 888-225-5322, 888-835-5322 (TTY), or firstname.lastname@example.org.