Millisecond Forums

Emotion dot probe - neutral and 50/50 trials

https://forums.millisecond.com/Topic25307.aspx

By HSG - 7/21/2018

Hi all,

Wondering if anyone knows how to edit this dot probe script to display both neutral and 50 threat/50 neutral trials so the same experiment administers test (48 50/50 trials) and training (288 neutral trials) ?

Thanks !
Hannah
By Dave - 7/23/2018

HSG - Saturday, July 21, 2018
Hi all,

Wondering if anyone knows how to edit this dot probe script to display both neutral and 50 threat/50 neutral trials so the same experiment administers test (48 50/50 trials) and training (288 neutral trials) ?

Thanks !
Hannah


You need to add the <trial> and other associated elements for the "neutral" category to the script and then sample from those trials per the <block>s' /trials attribute according to your needs. I.e.

<block DotProbeTask>
/ trials = [1-96 = noreplace(threat, neutral)]
</block>

would run 48 threat trials and 48 neutral trials in random order.