Millisecond Forums

Symmetry Span task- duration of stimuli

https://forums.millisecond.com/Topic22539.aspx

By jbeadle - 9/20/2017

Hi there,
I am interested in using the Automated Symmetry Span Task (ASSPAN) with older adults. Is it possible to edit this script to double the amount of time that each symmetry image and each red square is displayed for?
I have very little experience with this, so an answer that is as simple as possible would be very much appreciated :)

Thanks!
Julie
By Dave - 9/21/2017

jbeadle - Wednesday, September 20, 2017
Hi there,
I am interested in using the Automated Symmetry Span Task (ASSPAN) with older adults. Is it possible to edit this script to double the amount of time that each symmetry image and each red square is displayed for?
I have very little experience with this, so an answer that is as simple as possible would be very much appreciated :)

Thanks!
Julie

Hi Julie,

Yes, this is possible. To double the amount of time a given symmetry image is displayed, change values.symmetrytimeout from 5000

<values ASSPAN>
...
/ symmetrytimeout=5000
...
</values>

to 10000

<values ASSPAN>
...
/ symmetrytimeout=10000
...
</values>

To increase the time a given red square is displayed, set values.learninginterval to a suitable value of your choosing:

<values ASSPAN>
/ completed = 0
/ stopblock=0
/ learninginterval=850
...
</values>