[visionegg] Re: Dots and randomizing presentations

Hi Angelique,

(Sorry for the delay in response -- it's been a busy last 2 weeks
submitting a grant proposal.)

I don't have any specific advice other than yes, I think you'll need to
modify Dots.py itself to do what you want.

-Andrew

Angelique Paulk wrote:
> Hello, all,
> 
> I have what is probably a silly question with regard to the 'dots.py'
> program.  We are presenting the dots program on the screen with the
> dots all moving in one direction set at a specific dot lifespan (a
> variable in the dots.py program named dot_lifespan_sec, such as 750
> ms).  The difficulty right now is that we would like to have all the
> dots set at one lifespan, but with the timing of the appearance of
> each dot randomized, so that when the dots appear and disappear, they
> are not appearing and disappearing in synchrony (as they do now) but
> are randomized relative to each other.  Is there some way to modify
> this in the program?  The randomly moving dots already do this, but
> when the dots are moving coherently, they all disappear in synchrony.
> Would we need to modify the Dots.py program?
> 
> Thank you for any and all help!
> Angelique Paulk
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-- 
Dr. Andrew D. Straw
California Institute of Technology
http://www.its.caltech.edu/~astraw/
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