The online and offline effects of changing movement timing variability during training on a finger-opposition task.

ABSTRACT: In motor learning tasks, there is mixed evidence for whether increased task-relevant variability in early learning stages leads to improved outcomes. One problem is that there may be a connection between skill level and motor variability, such that participants who initially have more variability may also perform worse on the task, so will have more room to improve. To avoid this confound, we experimentally manipulated the amount of movement timing variability (MTV) during training to test whether it improves performance. Based on previous studies showing that most of the improvement in finger-opposition tasks comes from optimizing the relative onset time of the finger movements, we used auditory cues (beeps) to guide the onset times of sequential movements during a training session, and t

SUBMITTER: Friedman J 

PROVIDER: S-EPMC9349301 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature