Fading Images

[Mark Cox]

Does anyone know how to fade out images to a white background in
E-Prime.
I have created a visual search experiment that presents between 4 to 8
images on the screen at one time but I now need to adjust the experiment
so that the images are faded out rather than being blanked out (this is
to
prevent a patient with Epilepsy having a fit whilst undertaking this
experiment.

Roughly the experiment runs as follows-:

*
Between 4-8 images are displayed on the screen for 250ms
Screen is blank for 250ms
Between 4-8 images are displayed on the screen for 250ms (except one
image
which is removed)
Screen is blank for 250ms
*

This loop is repeated until the subject responds.
The display is set to 800x600 16bit colour depth. Note 256 bit colour
depth is no good
because the images are 24bit.

Mark

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