fixation cross location using yoked trials

[aczyp]

Hello Ting,

thank you for your quick reply!
Originally both the stimulus and the corresponding trial template were named "fixation_cross", probably not ideal. I followed your suggestion and changed the name of the template to make sure that there is no overlap, now it is "fixation_cross_template". I am afraid this did not help, the error message is still "The "alternate" pattern requires that all trial templates contain the same number of trials." - The same of course when I specify alternate_random as the pattern.

The trial template for the fixation cross looks like this:

"fixation_cross_template": {
"type": "basic",
"stimuli": ["fixation_cross"],
"location": [5,5],
"auto_advance": true},

In the procedures, it occurs like this:

"practice": {"trial_templates":["fixation_cross_template", "practice"],
"pattern":{"order":"alternate", "repeat":1}},

The trial template "practice" shows five stimuli in all.
Thanks a lot!