change the display while wiating for a response

[Christophe Pallier]

Dear all,

I need to measure RT from the onset of visual stimulus that must disappear from the screen after 500ms.

Programming in the following way will miss responses occuring in the first 500ms:

    target.present()
    exp.clock.wait(500)  

    blanckscreen.present()
    key, rt = exp.keyboard.wait(duration=MAX_RESPONSE_DURATION)
   
Is there an elegant way to handle that (avoiding two `exp.keyboard.wait()`, one after `target.present()` and another one after `blankscreen.present()`?