brightness level

[David McFarlane]

In E-Prime, as in many experiment programming systems, you change the 
brightness of a stimulus by generating and storing copies of your 
stimulus at different brightness levels outside of E-Prime, and then 
having E-Prime merely load the appropriate file as needed.

If you really want your program to manipulate stimulus brightness 
levels in realtime, look into MATLAB or PsychoPy.

-----
David McFarlane
E-Prime training 
online:  http://psychology.msu.edu/Workshops_Courses/eprime.aspx
Twitter:  @EPrimeMaster (https://twitter.com/EPrimeMaster)

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At 10/8/2013 03:13 PM Tuesday, olayak wrote:
>Is there a way to change the level of brightness in eprime?  I am 
>running a perception experiment and I need 4 levels of brightness of 
>the same image.
>
>Thanks!

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