Development of Sound Localization
Development of Sound Localization
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声音定位的发展
DOI：
10.1111/j.1442-200x.1992.tb00939.x
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发表时间：
1992
期刊：
影响因子：
--
通讯作者：
M. Kaga
中科院分区：
文献类型：
--
作者：
M. Kaga
感知声音定位是根据分别到达双耳的信号的时间差和响度差来确定的，其中时间差是更重要的。作者使用Sato开发的自记录设备检查了声音偏侧化的发展。它分别基于时间和响度差异来测量声音偏侧化的敏感性。受试者为59名2至18岁的儿童和12名听力和神经正常的成年人。声刺激为500Hz连续频带噪声。(1)4岁以上儿童可检测率提高，7岁以上儿童全部可检测。(2)4岁以上的儿童可以根据时间差将声音偏侧化。对时差的敏感性在4至6岁的儿童中迅速提高，呈现出陡峭的曲线，然后缓慢增加，直到成年。(3)随着年龄的增长，对响度差异的敏感性增加，标准差下降。4岁的儿童有可能几乎和成人一样能够辨别响度差异。
Perceptual sound localization is determined from differences in time and loudness of signals arriving separately at bilateral ears, with the time difference being the more important one. The author examined the development of sound lateralization using a self‐recording device developed by Sato. It measures the sensitivity of sound lateralization on the basis of time and loudness differences separately. Subjects were 59 children aged 2 to 18 years and 12 adults who were audiologically and neurologically normal. Sound stimulus was 500Hz continuous band noise. (1) The testable rate was increased in children older than the age of 4, and all children over 7 years of age could be tested. (2) Children over 4 years of age could lateralize sound on the basis of time difference. Sensitivity to time differences improved rapidly, showing a steep curve, in children from the ages of 4 to 6, and then increased slowly until adulthood. (3) Sensitivity to loudness differences increased and standard deviation decreased with age. There is a possibility that children aged 4 can discriminate loudness difference almost as well as adults.