Pulfrich effect unmasked

[P3D Norm Goldblatt <normgold@xxxxxxxxxx>]

Pulfrich?
Being a newbie, I'm not sure how well known this trick is, but it's
quite interesting.  Look at 'snow' ( what appears on the TV screen with
no signal) with one sunglass lens over one eye.  the snow will migrate
to left or right depending on the eye you're holding the lens over!!
This is due, I think, to the neuron firing delay experienced with the
weaker light level- or so I've heard. Any substantiation?

Stereo Color enhancement
Another effect I notice when viewing color autostereograms is the
vibrance of the colors when properly fused. What the HECK is going on
here?  Anyone know? Anyone but me notice it?


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