The perception of rhythmic units in speech by infants and adults
The perception of rhythmic units in speech by infants and adults
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DOI：
10.1006/jmla.1996.2483
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发表时间：
1997-02-01
影响因子：
4.3
通讯作者：
Childers, JB
中科院分区：
文献类型：
--
作者：
Echols, CH;Crowhurst, MJ;Childers, JB
三项研究调查了语音中节奏单位的感知，以探索节奏在词级分割中的潜在作用。实验1调查成人是否期望trochaic（强弱）单位凝聚。预测的poststress暂停，违反了连贯性的扬抑音，将是意想不到的，因此更显着的支持：受试者始终更有可能确定后比预应力暂停在三音节的语音刺激。在实验2中，头部转动偏好程序的一个变体被用来测试一个类似的问题与7个月和9个月大的婴儿。9个月奥尔兹表现出显着的偏好，其中的连贯性的扬抑被保存的刺激，这表明他们认为这些刺激更自然的比扬抑序列被中断的暂停刺激。在7个月奥尔兹中，没有观察到任何偏好。第三个实验测试的可能性，9个月奥尔兹使用的trochaic重音模式在字级分割。受试者区分一个扬抑序列，以前已被嵌入在一个四音节字符串。新的trochaic序列，这表明他们认识到以前听到的trochaic单位熟悉。对于抑扬格目标和干扰词，没有这种歧视，这表明婴儿未能识别以前听到的抑扬格序列。(C)北京：科学出版社.
Three studies investigated the perception of rhythmic units in speech to explore the potential role of rhythm in word-level segmentation. Experiment 1 investigated whether adults expect trochaic (strong-weak) units to cohere. The prediction that poststress pauses, which violated the coherence of the trochee, would be unexpected and therefore more noticeable was supported: Subjects were consistently more likely to identify post- than prestress pauses in trisyllabic speech stimuli. In Experiment 2, a variant of a head-turn preference procedure was used to test a similar question with 7- and 9-month-old infants. Nine-month olds showed a significant preference for stimuli in which the coherence of the trochee was preserved, suggesting that they perceived those stimuli as more natural than stimuli in which trochaic sequences were disrupted by pauses. Among 7-month olds, no preferences were observed. A third experiment tested the possibility that 9-month olds use the trochaic stress pattern in word-level segmentation. Subjects distinguished a trochaic sequence that had previously been embedded in a four-syllable string from a. novel trochaic sequence, suggesting that they recognized the previously heard trochaic unit as familiar. No such discrimination was present for iambic targets and distracters, suggesting that infants failed to recognize the previously heard iambic sequence. (C) 1997 Academic Press.