ABSTRACT This study investigated whether there is a co-occurrence between developmental dyslexia and congenital amusia in adults. First, a database of online musical tests on 18,000 participants was analysed. Self-reported dyslexic participants performed significantly lower on melodic skills than matched controls, suggesting a possible link between reading and musical disorders. In order to test this relationship more directly, we evaluated 20 participants diagnosed with dyslexia, 16 participants diagnosed with amusia, and their matched controls, with a whole battery of literacy (reading, fluency, spelling), phonological (verbal working memory, phonological awareness) and musical tests (melody, rhythm and metre perception, incidental memory). Amusia was diagnosed in six (30%) dyslexic participants and reading difficulties were found in four (25%) amusic participants. Thus, the results point to a moderate comorbidity between amusia and dyslexia. Further research will be needed to determine what factors at the neural and/or cognitive levels are responsible for this co-occurrence.

中文翻译：

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发育性阅读障碍和先天性失忆症之间的共病和认知重叠

摘要 本研究调查了成人发育性阅读障碍和先天性失忆症之间是否同时发生。首先，对 18,000 名参与者的在线音乐测试数据库进行了分析。自我报告有阅读障碍的参与者在旋律技能上的表现明显低于匹配的对照组，这表明阅读和音乐障碍之间可能存在联系。为了更直接地测试这种关系，我们评估了 20 名被诊断为阅读障碍的参与者、16 名被诊断为失忆症的参与者以及他们的匹配对照，包括读写能力（阅读、流利度、拼写）、语音（语言工作记忆、语音意识） ) 和音乐测试（旋律、节奏和节拍感知、偶然记忆）。六名 (30%) 有阅读障碍的参与者被诊断为 Amusia，四名 (25%) 有阅读障碍的参与者发现阅读困难。因此，结果表明听力障碍和阅读障碍之间存在中等程度的合并症。需要进一步的研究来确定神经和/或认知水平的哪些因素导致了这种共同发生。