Implicit Visuomotor Adaptation Remains Limited after Several Days of Training

Abstract Learning in sensorimotor adaptation tasks has been viewed as an implicit learning phenomenon. The process affords recalibration of existing motor skills so that the system can adjust to changes body or environment without relearning from scratch. However, recent findings suggest is heavily constrained, calling into question its utility and theoretical framework paradigms. These inferences have based mainly on results single bouts training, where explicit compensation strategies, such explicitly re-aiming intended movement direction, contribute a significant proportion adaptive learning. It possible, however, supersedes strategies over repeated practice sessions. We tested this by dissociating contributions human participants five consecutive days training. Despite substantially longer duration still plateaued at value far short complete and, observed previous studies, was inappropriate for mirror-reversal task. Notably, we find between subject differences call traditional interpretation these group-level results.