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Practice time necessary to achieve peak performance during the Brain Control (BC) and Dual Control (DC) tasks. Both untuned and directionally tuned cells require longer practice time to achieve peak performance in the dual control compared to the brain control task (p ≤ 0.008). There were no differences between time to reach peak performance comparing the tuned and untuned units in either task (p ≥ 0.31). Values are mean + SD.
