Rose S A, Schmidt K, Riese M L, Bridger W H
Child Dev. 1980 Jun;51(2):416-25.
Cardiac and behavioral responses to a tactual stimulus were evaluated during the first sleep cycle for 3 groups of infants: 30 full terms, 30 nonintervened preterms, and 30 intervened preterms. Prior to testing, the latter group had received a regimen of multimodal sensory stimulation, which emphasized the tactual and vestibular modalities. The results showed that the intervention altered the preterms' sensory functioning mainly during active sleep. In this state, the full terms and the intervened preterms exhibited a significant cardiac acceleration to the stimulus, while the nonintervened preterms failed to do so. Similarly, the behavioral response of the intervened preterm more closely approximated that of the full terms. During quiet sleep the intervention did not affect either the cardiac or the behavioral response. In this sleep state, the full terms' cardiac response was that of monophasic acceleration, whereas both groups of preterms exhibited a biphasic response with a smaller initial acceleration which was followed by a deceleration below baseline. Behaviorally, the preterms responded less frequently and gave smaller responses than the full terms. Thus there were marked differences between preterms and full terms, and the intervention seemed to narrow this gap to some extent.
30名足月儿、30名未干预的早产儿和30名接受干预的早产儿。在测试前，后一组接受了多模式感觉刺激方案，该方案强调触觉和前庭模式。结果表明，干预主要在活跃睡眠期间改变了早产儿的感觉功能。在这种状态下，足月儿和接受干预的早产儿对刺激表现出明显的心脏加速，而未干预的早产儿则没有。同样，接受干预的早产儿的行为反应更接近足月儿。在安静睡眠期间，干预对心脏或行为反应均无影响。在这种睡眠状态下，足月儿的心脏反应是单相加速，而两组早产儿均表现出双相反应，初始加速较小，随后低于基线减速。在行为上，早产儿的反应频率较低，反应幅度也比足月儿小。因此，早产儿和足月儿之间存在明显差异，而干预似乎在一定程度上缩小了这种差距。
