Abstract
Motor learning encompasses a broad set of phenomena that requires a diverse set of experimental paradigms. However, excessive variation in tasks across studies creates fragmentation that can adversely affect the collective advancement of knowledge. Here, we show that motor learning studies tend toward extreme fragmentation in the choice of tasks, with almost no overlap between task paradigms across studies. We argue that this extreme level of task fragmentation poses serious theoretical and methodological barriers to advancing the field. To address these barriers, we propose the need for developing common ‘model’ task paradigms which could be widely used across labs. Combined with the open sharing of methods and data, we suggest that these model task paradigms could be an important step in increasing the robustness of the motor learning literature and facilitate the cumulative process of science.
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Acknowledgements
The authors thank Dr. Chandramouli Krishnan for his comments on a previous version of this manuscript. The authors also thank Drs. Les Carlton and Mary Carlton for their comments, especially for pointing us to the work on the Learning strategies project. This material is based upon work supported by the National Science Foundation under Grant No. 1823889 (RR) and a National Science Foundation Graduate Fellowship (ADT).
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Ranganathan, R., Tomlinson, A.D., Lokesh, R. et al. A tale of too many tasks: task fragmentation in motor learning and a call for model task paradigms. Exp Brain Res 239, 1–19 (2021). https://doi.org/10.1007/s00221-020-05908-6
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DOI: https://doi.org/10.1007/s00221-020-05908-6