Examining the time course of indexical specificity effects in spoken word recognition
Examining the time course of indexical specificity effects in spoken word recognition
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DOI：
10.1037/0278-7393.31.2.306
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发表时间：
2005-03-01
影响因子：
2.6
通讯作者：
Luce, PA
中科院分区：
文献类型：
--
作者：
McLennan, CT;Luce, PA
说话者身份和语速的变化，通常被称为索引变化，对口语识别的速度和准确性有明显的影响。本研究考察了指示性专一性效应的时间进程，以评价这种效应在口语知觉加工中相对较晚出现的假说。在3个长期的重复启动实验中，作者检验了对目标的反应时，这些刺激在兴趣的指标性变量(说话者身份或说话速度)上匹配或不匹配。每个实验的目的都是为了控制参与者处理刺激的速度。结果表明，只有在加工相对缓慢和费力的情况下，索引变异性才会影响受试者对口语单词的知觉。
Variability in talker identity and speaking rate, commonly referred to as indexical variation, has demonstrable effects on the speed and accuracy of spoken word recognition. The present study examines the time course of indexical specificity effects to evaluate the hypothesis that such effects occur relatively late in the perceptual processing of spoken words. In 3 long-term repetition priming experiments, the authors examined reaction times to targets that were primed by stimuli that matched or mismatched on the indexical variable of interest (either talker identity or speaking rate). Each experiment was designed to manipulate the speed with which participants processed the stimuli. The results demonstrate that indexical variability affects participants' perception of spoken words only when processing is relatively slow and effortful.