User`s guide

E-Prime User’s Guide
Appendix C: Sample Experiments
Page A-40
In order to collect input during both the Stimulus and Mask presentations, extended input must be
enabled. Refer to the Basic Reaction Time Example: Extended Input section of this appendix for
more information.
Add a prime
To add a prime to be presented prior to the stimulus, insert a TextDisplay object in the TrialProc
timeline before the Stimulus object. Enter the Prime text and set the duration in the Properties for
the new object. As with the stimulus presentation, it is likely that the Prime will vary on each trial.
Therefore, it would be useful to create a new attribute in the TrialList to define the values used for
Prime presentation.