Table 1.

The 10 events and durations defined for the communicative session.

Event	Trial period	Trial type	Duration
1	Sender planning	communicative easy	Variable (from presentation of target configuration until Sender pressed the start button)
2	Sender planning	communicative difficult	As above
3	Sender planning	control	As above
4	Sender moving	communicative easy communicative difficult control	Fixed – 5 s (from Sender pressing the start button)
5	Receiver planning	communicative easy communicative difficult	Variable (from presentation of the Receiver's shape until the Receiver pressed the start button)
6	Receiver planning	control	As above
7	Receiver moving	communicative	Fixed – 5 s (from Receiver pressing the start button)
8	Receiver moving	control	As above
9	Feedback	Correct	Fixed – 1.5 s (from presentation of Feedback stimulus)
10	Feedback	Incorrect	As above