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Distinct Sleep Spindles in Motor Regions Drive Memory and Performance Gains

Execution-area spindles stabilize motor memory, with planning-area bursts linked to improved post-nap performance

Overview

  • Researchers monitored EEG activity in 25 adults who learned a typing sequence and then took a monitored nap
  • Cortical areas engaged during training showed elevated sleep spindle activity throughout the nap
  • Increased spindles in motor execution regions correlated with stronger retention of the learned sequence
  • Separate bursts in motor planning cortices forecast participants’ performance improvements after the nap
  • Findings offer a unified framework for leveraging sleep rhythms to optimize learning and rehabilitation strategies