Extracting conceptual shifts from analysis of visualmotor data

Successful subjects have 3-5 "aha" moments in the first half of the training period when they acquire the NRL task. These are indicated by the blue peaks in the graph below which correspond to times when subject radically changes his strategy. These peaks are tightly correlated with performance improvement as indicated by the red learning curve. The second half of training consists of implementing the learned strategy in the visualmotor system, which is why performance continues to improve without any significant change in the underlying strategy.