Green K P, Norrix L W
Department of Psychology, University of Arizona, Tucson 85721, USA.
J Exp Psychol Hum Percept Perform. 2001 Feb;27(1):166-77.
Experiments were conducted investigating unimodal and cross-modal phonetic context effects on /r/ and /l/ identifications to test a hypothesis that context effects arise in early auditory speech processing. Experiment 1 demonstrated an influence of a preceding bilabial stop consonant on the acoustic realization of /r/ and /l/ produced within the stop clusters /ibri/ and /ibli/. In Experiment 2, members of an acoustic /iri/ to /ili/ continuum were paired with an acoustic /ibi/. These dichotic tokens were associated with an increase in "l" identification relative to the /iri/ to /ili/ continuum. In Experiment 3, the /iri/ to /ili/ tokens were dubbed onto a video of a talker saying /ibi/. This condition was associated with a reliable perceptual shift relative to an auditory-only condition in which the /iri/ to /ili/ tokens were presented by themselves, ruling out an account of these context effects as arising during early auditory processing.
进行了一些实验，研究单峰和跨峰语音语境对/r/和/l/识别的影响，以检验语境效应出现在早期听觉语音处理中的假设。实验1证明了前一个双唇塞音对出现在塞音群/ibri/和/ibli/中的/r/和/l/的声学实现有影响。在实验2中，声学上从/iri/到/ili/连续体的成员与声学/ibi/配对。相对于/iri/到/ili/连续体，这些双耳刺激与“l”识别的增加有关。在实验3中，/iri/到/ili/刺激被配音到一个说话者说/ibi/的视频上。与仅呈现/iri/到/ili/刺激的纯听觉条件相比，这种情况与可靠的感知偏移有关，排除了这些语境效应是在早期听觉处理过程中产生的说法。
