stimulus with minimum duration 30sec

[David Vinson]

At 11:31 07/11/02 -0500, Tracy Mitzner wrote:
>i'd like to present a stimulus for a minimum of 30 seconds with no limit
>on the maximum presentation time (i.e., infinite), with a key press
>terminating the slide anytime after 30 seconds.

What about making this presentation into two events?

1. presenting the stimulus for 30sec, terminating at the end of that
duration only and not permitting a keypress,
2. waiting for a keypress input (duration -1)?

If it suits your experimental design, event 2 could display some sort of
prompt while the stimulus from event 1 remains on screen.

hth,
david