Department of Speech, Hearing and Language, Universidade Federal de São Paulo, São Paulo, SP, Brazil.
Department of Teleaudiology and Screening, World Hearing Center, Institute of Physiology and Pathology of Hearing, Kajetany, Poland.
Med Sci Monit. 2024 Jun 11;30:e944090. doi: 10.12659/MSM.944090.
BACKGROUND The dichotic digit test (DDT) is one of the tests for the behavioral assessment of central auditory processing. Dichotic listening tests are sensitive ways of assessing cortical structures, the corpus callossum, and binaural integration mechanisms, showing strong correlations with learning difficulties. The DDT is presently available in a number of languages, each appropriate for the subject's native language. However, there is presently no test in the Italian language. The goal of this study was to develop an Italian version of the one-pair dichotic digit test (DDT-IT) and analyze results in 39 normal-hearing Italian children 11 to 13 years old. We used 2 conditions of presentation: free recall and directed attention (left or right ear), and looked at possible effects of sex and ear side. MATERIAL AND METHODS This study involved 3 steps: creation of the stimuli, checking their quality with Italian speakers, and assessment of the DDT-IT in our subject pool. The study involved 39 children (26 girls and 13 boys), aged 11-13 years. All participants underwent basic audiological assessment, auditory brainstem response, and then DDT-IT. RESULTS Results under free recall and directed attention conditions were similar for right and left ears, and there were no sex or age effects. CONCLUSIONS The Italian version of DDT (DDT-IT) has been developed and its performance on 39 normal-hearing Italian children was assessed. We found there were no age or sex effects for either the free recall condition or the directed attention condition.
双耳分听测试（DDT）是一种用于评估中枢听觉处理的行为测试。 双耳分听测试是评估皮质结构、胼胝体和双耳整合机制的敏感方法，与学习困难有很强的相关性。DDT 目前有多种语言版本，每种版本都适用于受试者的母语。然而，目前意大利语中没有这种测试。本研究的目的是开发一种意大利语版的单对数字双听测试（DDT-IT），并分析 39 名听力正常的 11 至 13 岁意大利儿童的测试结果。我们使用了 2 种呈现条件：自由回忆和定向注意（左或右耳），并观察了性别和耳侧的可能影响。材料和方法：本研究包括 3 个步骤：刺激的创建、用意大利语使用者检查其质量，以及在我们的受试人群中评估 DDT-IT。研究对象为 39 名儿童（26 名女孩和 13 名男孩），年龄在 11-13 岁之间。所有参与者都接受了基本的听力学评估、听觉脑干反应，然后进行 DDT-IT。结果：在自由回忆和定向注意条件下，右耳和左耳的结果相似，性别和年龄均无影响。结论：开发了意大利语版的 DDT（DDT-IT），并评估了 39 名听力正常的意大利儿童的表现。我们发现，无论是在自由回忆条件还是在定向注意条件下，年龄或性别均无影响。
