Grau S M, Robb M P, Cacace A T
University of Hawaii Honolulu, USA.
J Speech Hear Res. 1995 Apr;38(2):373-81. doi: 10.1044/jshr.3802.373.
The duration and vocal fundamental frequency (Fo) of inspiratory cries produced by a group of 20 healthy infants were measured. Similar acoustic measures were applied to the cries immediately preceding and following an inspiratory cry as a means of characterizing an inspiratory "event." Results were that the number of inspiratory cries varied considerably from child to child during a complete crying episode. The duration and Fo of inspiratory cries were significantly shorter and higher, respectively, in comparison to cries immediately preceding and following the inspiratory cry. In addition, the gap duration following an inspiratory cry was significantly greater than the pre-inspiratory gap duration. Discussion centers on the anatomical and physiological bases of inspiratory cry phonation. Implications as well as the need to consider the inspiratory portion of crying behavior when examining infants at risk for respiratory distress also are discussed.
对一组20名健康婴儿发出的吸气性哭声的持续时间和嗓音基频（Fo）进行了测量。对紧接吸气性哭声之前和之后的哭声应用了类似的声学测量方法，作为表征吸气“事件”的一种手段。结果显示，在一次完整的哭闹过程中，吸气性哭声的数量在不同婴儿之间差异很大。与吸气性哭声之前和之后的哭声相比，吸气性哭声的持续时间和Fo分别显著更短和更高。此外，吸气性哭声后的间隙持续时间显著长于吸气前的间隙持续时间。讨论集中在吸气性哭声发声的解剖学和生理学基础上。还讨论了相关影响以及在检查有呼吸窘迫风险的婴儿时考虑哭闹行为吸气部分的必要性。
