2.2 Procedure
Participants underwent two sessions, each including 2.5 hours that were
divided as follows - 1.5 hours of EEG tasks, then 1 hour of behavioral
testing with a 10-15 minute break between the EEG and behavioral
testing. Participants were prepared for the EEG recording by two
research assistants. Participants underwent a 3-minute artifact training
period, then performed three separate ERP paradigms (a novelty odd-ball,
a speeded visual flanker task, and a visually-evoked contingent negative
variation, CNV) in an electrically shielded, sound attenuated recording
room. Only the data from the speeded visual flanker task will be
presented here. Procedures for this study were approved by the
University’s human research committee. Written informed consent was
obtained from all participants.