González Julio, McLennan Conor T
Department of Basic, Clinical Psychology and Psychobiology, Universitat Jaume I, Castellon, Spain.
J Exp Psychol Hum Percept Perform. 2007 Apr;33(2):410-24. doi: 10.1037/0096-1523.33.2.410.
Variability in talker identity, one type of indexical variation, has demonstrable effects on the speed and accuracy of spoken word recognition. Furthermore, neuropsychological evidence suggests that indexical and linguistic information may be represented and processed differently in the 2 cerebral hemispheres, and is consistent with findings from the visual domain. For example, in visual word recognition, changes in font affect processing differently depending on which hemisphere initially processes the input. The present study examined whether hemispheric differences exist in spoken language as well. In 4 long-term repetition-priming experiments, the authors examined responses to stimuli that were primed by stimuli that matched or mismatched in talker identity. The results demonstrate that indexical variability can affect participants' perception of spoken words differently in the 2 hemispheres.
说话者身份的变异性作为一种指示性变异，对口语单词识别的速度和准确性具有显著影响。此外，神经心理学证据表明，指示性信息和语言信息在大脑的两个半球中可能具有不同的表征和处理方式，这与视觉领域的研究结果一致。例如，在视觉单词识别中，字体变化对处理过程的影响因最初处理输入的半球不同而有所差异。本研究也考察了口语中是否存在半球差异。在4个长期重复启动实验中，作者研究了参与者对由说话者身份匹配或不匹配的刺激所启动的刺激的反应。结果表明，指示性变异在两个半球中对参与者的口语单词感知可能产生不同的影响。
