http://www.sciencemag.org/content/345/6202/1306.8.short
How do we learn from past errors? Herzfeld et al.
found that when we practice a movement, the human brain has a memory
for errors that is then used to learn faster in new
conditions. This memory for error exists in
parallel with motor memory's two traditional forms: memory of actions
and memory
of external perturbations. They also proposed a
mathematical model for learning from errors. This model explained
previous
experimental results and predicted other major
findings that they later verified experimentally.
Science, this issue p. 1349
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