Morse P A, Leavitt L A, Miller C L, Romero R C
J Speech Hear Res. 1977 Mar;20(1):40-54. doi: 10.1044/jshr.2001.40.
The relationship between verbal report and cardiac orienting response measures of speech discrimination in adult listeners was examined in two experiments using stimuli and paradigms previously employed in studies of infant speech perception. The results of Experiment I revealed that all listeners, those who reported discrimination of a synthetic [ba-ga] change (Group D) as well as those who did not (Group ND), demonstrated cardiac discrimination of the stimulus shift. However, this pattern of cardiac activity, both at stimulus onset and the shift, was found to be different in these two groups of listeners. Experiment II replicated the Group D results using a slightly different cardiac paradigm and quasinatural speech syllables. The implications of these findings for developmental research on speech perception with older infants, children, and populations with language disorders are discussed.
在两项实验中，使用先前在婴儿语音感知研究中采用的刺激和范式，检验了成年听众言语报告与言语辨别心脏定向反应测量之间的关系。实验一的结果显示，所有听众，即那些报告能辨别合成的[ba-ga]变化的听众（D组）以及那些不能辨别的听众（ND组），都表现出对刺激变化的心脏辨别能力。然而，发现在这两组听众中，刺激开始时和变化时的这种心脏活动模式是不同的。实验二使用略有不同的心脏范式和准自然语音音节重复了D组的结果。讨论了这些发现对年龄较大婴儿、儿童以及语言障碍人群的语音感知发展研究的意义。
