Thach B T, Lijowska A
Edward Mallinckrodt Department of Pediatrics, Washington University School of Medicine, St. Louis, Missouri 63110, USA.
Sleep. 1996 Dec;19(10 Suppl):S271-3. doi: 10.1093/sleep/19.suppl_10.s271.
Polygraphic studies of stimulus-induced arousals from sleep in young infants have identified a highly consistent sequence of reflex responses occurring during the 2-4 second period prior to full behavioral arousal. The initial responses in this sequence are an augmented breath (sigh) coupled with a sleep startle that is then followed by stereotyped "thrashing" motor activity. Partial arousals, identified by early components of the sequence (a sigh or a sigh plus startle), were frequently elicited. Startles and thrashing activity were identified as having a significant external airway protective function during mild asphyxia induced by covering the infants' nasal and oral airways.
对幼儿睡眠中由刺激引起的觉醒进行的多导睡眠图研究已经确定，在完全行为觉醒前的2至4秒期间会出现一系列高度一致的反射反应。该序列中的初始反应是一次增强呼吸（叹息），伴随着一次睡眠惊跳，随后是刻板的“扭动”运动活动。由该序列的早期成分（一次叹息或一次叹息加惊跳）所确定的部分觉醒经常被诱发。在通过覆盖婴儿的鼻和口腔气道所诱发的轻度窒息期间，惊跳和扭动活动被确定具有重要的外部气道保护功能。
