Abstract
Rapid learning can be critical to ensure elite performance in a changing world or to recover basic
movement after neural injuries. Recently it was shown that the variability of follow-through
movements afects the rate of motor memory formation. Here we investigate if lead-in movement has a
similar efect on learning rate. We hypothesized that both modality and variability of lead-in movement
would play critical roles, with simulations suggesting that only changes in active lead-in variability
would exhibit slower learning. We tested this experimentally using a two-movement paradigm, with
either visual or active initial lead-in movements preceeding a second movement performed in a force
feld. As predicted, increasing active lead-in variability reduced the rate of motor adaptation, whereas
changes in visual lead-in variability had little efect. This demonstrates that distinct neural tuning
activity is induced by diferent lead-in modalities, subsequently infuencing the access to, and switching
between, distinct motor memories.
Original language | English |
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Number of pages | 0 |
Journal | Scientific Reports |
Volume | 0 |
Issue number | 0 |
Early online date | 10 Aug 2017 |
DOIs | |
Publication status | Published - 10 Aug 2017 |