Experimental design
BLIND
Before any study activities commenced, this study was approved by the Institutional Review Board at Indiana University (#12623) and was subsequently performed in accordance with the standards set by the latest revision of the Declaration of Helsinki, except for the registration in a database. This study utilized a single blind, block randomized, balanced, cross-over design. Participants reported to the laboratory on two separate occasions, with at least 72 hours between visits, and within 48 hours after the final practice day. Visit 1 included consenting, screening, and familiarization (practice gamified cognitive tests). Familiarization consisted of a demonstration of the gamified cognitive tests followed by 5 bouts of the the gamified cognitive tests. After each bout, the study personnel answered any questions. Following Visit 1, participants completed 1 practice session of the gamified cognitive tests for the three consecutive days immediately prior to returning to the lab for an experimental visit. A single practice session consisted of playing the gamified cognitive test bout 5 times. Familiarization and practice sessions were utilized to decrease the primary learning effects of the gamified cognitive tests, as previous work has demonstrated a learning plateau following 4 practice sessions [