Thoman E B, Graham S E
Pediatrics. 1986 Nov;78(5):855-60.
Premature babies are capable of seeking contact with a source of rhythmic stimulation that reflects their own breathing rhythm. Optional stimulation, in the form of a "breathing" stuffed bear, was made available to premature infants, 32 to 35 weeks' gestational age. The bear's breathing rate was matched to that of each individual infant during quiet sleep. Other infants were exposed to a bear that did not breathe, and some infants were not exposed to a bear. All infants were monitored continuously using time-lapse video. After 2 to 3 weeks' exposure, those infants with a breathing bear showed significantly more contact with their head, body, or limbs than either of the control groups (for the no-bear group, contact with the area that would have been occupied by the bear was determined to describe the contact that might have been expected by chance). In addition, the infants given the opportunity to self-regulate their stimulation showed greater amounts of quiet sleep than the other two groups.
早产婴儿能够寻求与反映自身呼吸节奏的有节奏刺激源进行接触。对胎龄为32至35周的早产婴儿提供了以“呼吸”填充熊形式的可选刺激。在安静睡眠期间，熊的呼吸速率与每个婴儿的呼吸速率相匹配。其他婴儿接触的是不会呼吸的熊，还有一些婴儿没有接触熊。所有婴儿都使用延时视频进行连续监测。经过2至3周的接触后，那些接触呼吸熊的婴儿与头部、身体或四肢的接触明显多于两个对照组中的任何一组（对于无熊组，确定与熊原本占据区域的接触情况以描述可能偶然出现的接触情况）。此外，有机会自我调节刺激的婴儿比其他两组表现出更多的安静睡眠。
