College of Medical Technology, Zhejiang Chinese Medical University, Hangzhou, China.
Independent Scholar, Des Plaines, IL, USA.
Int J Audiol. 2020 Dec;59(12):941-947. doi: 10.1080/14992027.2020.1783004. Epub 2020 Jul 2.
Available data on dichotic listening using tonal Chinese words have been limited, and conflicting results on a right-ear advantage (REA) have been reported. The current study developed a set of Mandarin CV-words based on the Bergen dichotic listening paradigm.
The test materials consisted of two sets of stimuli. The English set, derived from the iDichotic application, consisted of six nonsense syllables with plosives conjugated to /a/. The Mandarin set had these 6 CV-syllables spoken as real words according to the Mandarin phonology. Forty young, native Mandarin speakers were tested dichotically with both sets of test materials. Twenty participants were right-handed, and the other twenty were left-handed. Fourteen participants were randomly selected to repeat the test with the Mandarin set.
The mean difference of correct recognition responses between two ears indicated a REA with both sets of stimuli for the right-handers, but not for left-handers. For the right-handers, performance with the Mandarin set was significantly better than performance with the English set. Dichotic listening with the Mandarin set had strong correlation between two time points, = 0.8.
Performance using the Mandarin set is reliable in dichotic listening; a REA is observed for the right-handers.
使用声调汉语词的两耳分听研究的数据有限，并且已有报告称右耳优势（REA）的结果相互矛盾。本研究基于卑尔根两耳分听范式开发了一套普通话 CV 词。
测试材料由两套刺激组成。英语集来源于 iDichotic 应用程序，包含六个带有爆破音的无意义音节，与/a/结合。普通话集根据普通话语音学将这 6 个 CV 音节作为实词发音。40 名年轻的、母语为普通话的参与者分别用这两套测试材料进行了两耳分听测试。20 名参与者为右利手，其余 20 名为左利手。14 名参与者被随机选中重复普通话集的测试。
右利手者对两种刺激的正确识别反应的平均差异表明存在右耳优势，但左利手者则没有。对于右利手者来说，使用普通话集的表现明显优于使用英语集的表现。用普通话集进行两耳分听，两次测试之间的相关性很强，r=0.8。
使用普通话集进行两耳分听的表现可靠；右利手者表现出右耳优势。
