visual dot probe experiment: position of words & pictures

[ben robinson]

how would the LED help?

On Thu, Jun 2, 2011 at 6:40 PM, Paul Groot <pfc.groot at gmail.com> wrote:

> I agree. For time critical experiments one should always be suspicious
> about what's really going on. LCD response times improved
> significantly (<10ms) since the introduction of special gamers and 3D
> displays (>100 Hz), but onset problems keep popping up. I would
> recommend to buy a high speed photo camera to validate display timing.
> Those neat little camera's are very affordable these days and are
> ideal for checking onset problems. A simple LED that can be connected
> to the printer port should also be added to the validation toolbox. (A
> LED can be switch on/off very fast by eprime if it's connected to the
> printer port.)
>
> Paul
>
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