The researchers believe REM sleep allows the brain to form new nerve connections without the interference of other thought pathways that occur when we are awake or in non-dream-state sleep.

• 研究员相信在快速眼动期睡眠期，大脑能不受其它思绪干扰，形成新的神经网络，那是在清醒或无梦状态睡眠时不能做到的。