Repetition and variation in motor practice: A review of neural correlates

• Published in: Neuroscience and biobehavioral reviews Vol. 57; pp. 132 - 141
• Main Authors: Lage, Guilherme M, Ugrinowitsch, Herbert, Apolinário-Souza, Tércio, Vieira, Márcio Mário, Albuquerque, Maicon R, Benda, Rodolfo Novellino
• Format: Journal Article
• Language: English
• Published: United States 01-10-2015
• Subjects: Cerebral Cortex - physiology; Humans; Motor Activity - physiology; Practice (Psychology); Random practice; Supplementary motor area; Transcranial magnetic stimulation; Constant practice; Interleaved practice; Variability of practice; Contextual interference effect; Motor learning; Dorsolateral prefrontal cortex; Primary motor cortex; Practice schedule; fMRI; Parietal cortex; Premotor cortex; Blocked practice
• ISSN: 0149-7634; 1873-7528
• DOI: 10.1016/j.neubiorev.2015.08.012

Random practice results in more effective motor learning than either constant or blocked practice. Recent studies have investigated the effects of practice schedules at the neurophysiological level. This study aims to conduct a literature review of the following issues: (a) the differential involvement of premotor areas, the primary motor cortex, the dorsolateral prefrontal cortex and the posterior parietal cortex in different types of practice; (b) changes in the participation of these areas throughout practice; and (c) the degree of support that current neurophysiological findings offer to strengthen the behavioral proposition that distinct cognitive processes are generated by different practice schedules. Data from 10 studies that investigated associations between practice structures and neurobiological substrates were analyzed. The participation of the indicated areas was found to depend on practice structure and varied during the learning process. Greater cognitive engagement was associated with random practice. In conclusion, distinct neural processes are engendered by different practice conditions. The integration of behavioral and neurophysiological findings promotes a more comprehensive view of the phenomenon.