After EEG set-up and task instructions, participants
were seated in a dimly lit room at a distance of 60cm from
the monitor. Four practice trials (one per stimulus) were
completed followed by the five task blocks separated by
self-paced rest breaks. The task was to gain as many points
as possible by learning the correct button-press for each
stimulus. One point was awarded per correct response and
the number of points won was displayed after each block.
Participants were instructed to attend closely to the feedback
to ensure they were aware of the change to response
mappings but were not told when this would occur.