THE DEVELOPMENT OF A HUMAN AUDITORY LOCALIZATION RESPONSE - A U-SHAPED FUNCTION
THE DEVELOPMENT OF A HUMAN AUDITORY LOCALIZATION RESPONSE - A U-SHAPED FUNCTION
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DOI：
10.1037/h0084220
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发表时间：
1989-06-01
期刊：
影响因子：
--
通讯作者：
CLARKSON, MG
中科院分区：
文献类型：
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作者：
MUIR, DW;CLIFTON, RK;CLARKSON, MG
本文回顾了近10年来有关新生儿头转向反应的研究，并确定了影响引起正确反应概率的各种程序和刺激条件。此外，在对104名3天至7个月大的婴儿进行的横断面研究中证实了U形发育功能的存在。新生儿的反应可靠，但缓慢;反应的频率和幅度下降之间的1-3个月的年龄和4-5个月的年龄再次增加。婴儿对优先效应（PE）的反应支持了这种U形功能反映了控制点从皮层下结构到皮层结构的成熟转变的推测，认为这是皮层介导的。PE是通过两个扬声器播放拨浪鼓声音产生的，其中一个扬声器的输出相对于另一个扬声器延迟5 ms;成年人在领先的扬声器中只感知到一种声音。正如预测的那样，新生儿未能响应PE，正确的PE反应的发生密切对应于SS反应的U形函数的上升。对声音的定向反应暂时下降的其他解释也进行了讨论。
Research during the past 10 years on the neonatal head-turn response to off-central rattle sounds is reviewed, and various procedural and stimulus conditions that influence the probability of eliciting a correct reponse are identified. Also, the existence of a U-shaped developmental function is confirmed in a cross-sectional study of 104 infants between 3 days and 7 months of age. Neonates responded reliably, but slowly; the response decreased in frequency and magnitude betwen 1-3 months of age and increased again by 4-5 months of age. Speculation that this U-shaped function reflects a maturational shift in locus of control from subcortical to cortical structures was supported by the infants'' responses to the precedence effect (PE), which is thought to be cortically mediated. The PE was produced by playing the rattle sound through two loudspeakers with the output of one delayed by 5ms, relative to the other; adults perceive only one sound at the leading loudspeaker. As predicted, neonates failed to respond to the PE, and the onset of correct PE responses corresponded closely to the upswing in the U-shaped function for SS responses. Other explanations for the temporary decline in orientation responses to sound are also discussed.