Latency on keyboard response for Stroop trials

[wakecarter]

That would explain it. You have two keyboard components working against each other.

Wakefield's Daily Tips

Use keyboard components instead of event.getKeys() The keyboard component in PsychoPy Builder uses the Keyboard class, which has better timing than the older event module. If you want to identify whether a key has been pressed in Each Frame then code of the form keys = event.getKeys() can be replaced with keys = [] if key_resp.keys: # Keyboard component should store all keys and not force the end of the routine if len(key_resp.keys) > nKeys: # Add nKeys = 0 in Begin Routine keys =…