P3D Color vision in 3D

[pacaine <pacaine@xxxxxxxxxxxxxxxxxxxx>]

I wonder if there is any relationship between color vision
and human perception of 3D.  I ask because my wife says
that red objects, particularly letters, protrude out into the
room in a 3d effect when she watches television.  I don't
see this effect when she mentions it.  Is she imagining it
or is there such an effect for some people?
Thanks Phil Caine