Lingual kinematic strategies used to increase speech rate: Comparison between younger and older adults
Lingual kinematic strategies used to increase speech rate: Comparison between younger and older adults
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DOI：
10.1080/02699200420002268862
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发表时间：
2005-06-01
影响因子：
1.2
通讯作者：
Lapointe, LL
中科院分区：
文献类型：
--
作者：
Goozée, JV;Stephenson, DK;Lapointe, LL
本研究的主要目的是评估年轻人和老年人用于提高语速的语言运动策略。据推测，老年人使用的策略与年轻人不同，这可能是由于舌头与年龄相关的变化的直接结果，或者是为了补偿与年龄相关的舌头变化的需要。使用电磁发音描记术检查八名年轻女性（M = 26.7 岁）和八名年长女性（M = 67.1 岁）在以受控的中等速率重复/ta/和/ka/期间的舌头运动，然后尽可能快。研究发现年轻人和老年人显着减少辅音持续时间并以相似的比例增加音节重复率。为了减少持续时间，两组似乎都使用了相同的策略，即减少舌头移动的距离。然而，对每个速率的进一步比较表明，老年人需要权衡速度和准确性，并增加言语监控。研究结果可能有助于区分与正常衰老相关的关节变化和影响老年人群的疾病中发现的病理变化。
The primary objective of this study was to assess the lingual kinematic strategies used by younger and older adults to increase rate of speech. It was hypothesised that the strategies used by the older adults would differ from the young adults either as a direct result of, or in response to a need to compensate for, age-related changes in the tongue. Electromagnetic articulography was used to examine the tongue movements of eight young (M=26.7 years) and eight older (M=67.1 years) females during repetitions of /ta/ and /ka/ at a controlled moderate rate and then as fast as possible. The younger and older adults were found to significantly reduce consonant durations and increase syllable repetition rate by similar proportions. To achieve these reduced durations both groups appeared to use the same strategy, that of reducing the distances travelled by the tongue. Further comparisons at each rate, however, suggested a speed-accuracy trade-off and increased speech monitoring in the older adults. The results may assist in differentiating articulatory changes associated with normal aging from pathological changes found in disorders that affect the older population.