Effects of syntactic expectations on speech segmentation
Effects of syntactic expectations on speech segmentation
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DOI：
10.1037/0096-1523.33.4.960
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发表时间：
2007-08-01
影响因子：
2.1
通讯作者：
White, Laurence
中科院分区：
文献类型：
--
作者：
Mattys, Sven L.;Melhorn, James F.;White, Laurence
虽然已经广泛地研究了声学线索对语音分割的影响，但是高阶信息（例如，语法）受到的关注较少。在这里，作者研究是否句法预期的基础上，主谓一致的分割，以及他们是否这样做，尽管相互冲突的声学线索。虽然参与者在包含足够声学线索的短语中更快地检测到目标词（take spins中的“spins”和takes pins中的“pins”），但当短语附加到复数上下文时，这种声学效果被抑制（那些女性take spins/*takes pins [星号表示句法上不可接受的解析]）。句法一致的目标（“自旋”）被检测得更快，无论声学。然而，一个单一的上下文（那个女人 * 旋转/大头针）对分割没有影响，结果与中性短语相似。随后的实验表明，这种差异是由于句法预期和声学线索的相对时间过程。两者合计，数据表明，句法知识可以促进分割，但其效果大大减弱，如果冲突的声学线索之前遇到的句法约束的充分实现。
Although the effect of acoustic cues on speech segmentation has been extensively investigated, the role of higher order information (e.g., syntax) has received less attention. Here, the authors examined whether syntactic expectations based on subject-verb agreement have an effect on segmentation and whether they do so despite conflicting acoustic cues. Although participants detected target words faster in phrases containing adequate acoustic cues ("spins" in take spins and "pins" in takes pins), this acoustic effect was suppressed when the phrases were appended to a plural context (those women take spins/*takes pins [with the asterisk indicating a syntactically unacceptable parse]). The syntactically congruent target ("spins") was detected faster regardless of the acoustics. However, a singular context (that woman *take spins/takes pins) had no effect on segmentation, and the results resembled those of the neutral phrases. Subsequent experiments showed that the discrepancy was due to the relative time course of syntactic expectations and acoustics cues. Taken together, the data suggest that syntactic knowledge can facilitate segmentation but that its effect is substantially attenuated if conflicting acoustic cues are encountered before full realization of the syntactic constraint.