Dastgerdi Zahra Hosseini, Seifi Hasti, Vahabi Mohadese
Department of Audiology, School of Rehabilitation Sciences, Isfahan University of Medical Sciences, Isfahan, Iran.
Department of Audiology, University of Social Welfares and Rehabilitation Sciences, Tehran, Iran.
Indian J Otolaryngol Head Neck Surg. 2023 Dec;75(4):3221-3227. doi: 10.1007/s12070-023-03978-w. Epub 2023 Jun 17.
The aim of this study was to investigate the effect of the age of second language acquisition on auditory binaural and temporal processing in three groups of early and late Persian-English bilingual and Persian monolingual children. The sample consisted of 63 subjects aged between 9 and 13 years, divided into: 21 monolingual, 21 early bilingual and 21 late bilingual children. The individuals were underwent to the Dichotic digits (DD), Pitch Pattern Sequence (PPS), Duration Pattern Sequence (DPS) and gaps in noise (GIN) tests. The results showed that the scores of dichotic digits, frequency and duration pattern tests were different between the three groups. These scores were better in early bilingual in comparison to other groups. There was no difference in the scores of the mentioned tests between the late bilingual and monolingual groups. There was no significant difference between the GIN results in the three study groups. predictive variables include Binaural Proficiency (BP), Age of Acquisition (AoA) of English language, Time Period of Learning (TPL) English language are the determining factors of the dichotic digit and the frequency and duration pattern tests. Learning a second language before the age of six has a positive effect on dichotic and temporal pattern processing. In addition, lower AoA, more proficiency in the second language, and the longer the duration of receiving the second language training are related to better dichotic and temporal pattern processing.
本研究的目的是调查三组早期和晚期波斯 - 英语双语儿童以及波斯语单语儿童的第二语言习得年龄对听觉双耳和时间处理的影响。样本包括63名年龄在9至13岁之间的受试者，分为：21名单语儿童、21名早期双语儿童和21名晚期双语儿童。这些个体接受了双耳数字（DD）、音高模式序列（PPS）、持续时间模式序列（DPS）和噪声间隙（GIN）测试。结果表明，三组之间双耳数字、频率和持续时间模式测试的分数存在差异。与其他组相比，早期双语儿童的这些分数更好。晚期双语组和单语组在上述测试的分数上没有差异。三个研究组的GIN结果没有显著差异。预测变量包括双耳熟练度（BP）、英语习得年龄（AoA）、英语学习时间段（TPL），是双耳数字以及频率和持续时间模式测试的决定因素。六岁之前学习第二语言对双耳和时间模式处理有积极影响。此外，较低的AoA、更高的第二语言熟练度以及接受第二语言训练的时间越长，与更好的双耳和时间模式处理相关。
