Table 1. Task’s description.

	Group 1	Group 2	Group 3
Task	Object Naming	Matching	All the same/ one different judgment	Abstract/concrete judgment
Stimuli	Images	Symbols/letters	4 Gabor patches	Nouns
Input modality	Visual	Visual	Visual	Auditory
Output modality	Speech	Button	Button	Button
# Participants	15	12	17*	17*
Task period (s)	105	125	130	105
# Task periods	2	2	3	3
Baseline (s)	51	40	37.5	37.5
# Baseline periods	3	3	4	4
Stimulus duration (ms)	200	500	300	Varied

^*the same participants performed the two tasks in the same order.