Auditory temporal order perception in younger and older adults
Auditory temporal order perception in younger and older adults
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DOI：
10.1044/jslhr.4105.1052
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发表时间：
1998-10-01
影响因子：
2.6
通讯作者：
Gordon-Salant, S
中科院分区：
文献类型：
--
作者：
Fitzgibbons, PJ;Gordon-Salant, S
这项调查考察了年轻和年长的听者辨别和识别声调序列中声音的时间顺序的能力。研究假设，年长的听者在两种时间加工任务上都比年轻的听者表现出更大的困难，特别是在复杂的刺激模式上。人们还预计，对于所有听众来说，语调辨别将比语调识别更容易。听众是听力正常或轻度至中度感音神经性听力损失的年轻人和老年人。刺激是在以4000赫兹为中心的1/3倍频程频率范围内的时间上连续的三音序列。在辨别任务中，听者辨别出标准刺激序列和对比刺激序列之间的差异，这些差异在音调的时间顺序上有所不同。对于识别桶，听者使用相对音高的标签来识别单个序列的声调顺序。年龄较大的听者在辨别任务中的表现要比年轻听者差得多，而辨别任务的音调模式也更复杂，而且在识别刺激呈现速度更快的任务中表现更差。研究结果还表明，对于所有的听者来说，顺序辨别比顺序识别更容易。听力损失对排序任务的影响微乎其微。
This investigation examined the abilities of younger and older listeners to discriminate and identify temporal order of sounds presented in tonal sequences. It was hypothesized that older listeners would exhibit greater difficulty than younger listeners on both temporal processing tasks, particularly for complex stimulus patterns. It was also anticipated that tone order discrimination would be easier than tone order identification for all listeners. Listeners were younger and older adults with either normal hearing or mild-to-moderate sensorineural hearing losses. Stimuli were temporally contiguous three-tone sequences within a 1/3 octave frequency range centered at 4000 Hz. For the discrimination task, listeners discerned differences between standard and comparison stimulus sequences that varied in tonal temporal order. For the identification cask, listeners identified tone order of a single sequence using labels of relative pitch. Older listeners performed more poorly than younger listeners an the discrimination task far the more complex pitch patterns and on the identification task for faster stimulus presentation rates. The results also showed that order discrimination is easier than order identification for all listeners. The effects of hearing loss on the ordering tasks were minimal.