insertstimulusframe function

Adds the stimulus to the specified frame of a trial.

Member of

element.name.insertstimulusframe(value, index)

Name	Type	Description
value	stimulus	The new stimulus.
index	integer	The index of the frame. The first item in the list is 1.

The following dynamically adds an error feedback stimulus to the trial if performance dips below 50%:

<trial sometrial>
/ ontrialend= [if (trial.sometrial.percentcorrect <= 50) trial.test.insertstimulusframe(text.errorfeedback, 1); ]
</trial>