Standard deviation of gaussian mask for drifting grating stimulus

Benedict's Avatar

Benedict

11 Jul, 2019 02:07 PM

Hi,
I was wondering in what units the standard deviation of the gaussian mask for the drifting grating stimulus is given. Intuitively I would have thought it's in dva, but then gratings of different widths, but with the same standard deviation should look the same (which they don't), right? My next best guess is that it's percentage of the stimulus width?
Any answer would be greatly appreciated.
Thanks a lot!
Best
Benedict (German Primate Center)

  1. Support Staff 1 Posted by Christopher Sta... on 11 Jul, 2019 06:05 PM

    Christopher Stawarz's Avatar

    Hi Benedict,

    Please see this discussion for an explanation. (Adding this to the user manual is still on my to-do list!)

    Cheers,
    Chris Stawarz

  2. 2 Posted by Benedict on 11 Jul, 2019 07:26 PM

    Benedict's Avatar

    Thanks Chris, that answered all my questions! Sorry for not looking properly first.

  3. Christopher Stawarz closed this discussion on 11 Jul, 2019 08:00 PM.

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