Regular musical rhythms orient attention over time and facilitate processing. Previous research has shown that regular rhythmic stimulation benefits subsequent syntax processing in children with dyslexia and specific language impairment. The present EEG study examined the influence of a rhythmic musical prime on the P600 late evoked-potential, associated with grammatical error detection for dyslexic adults and matched controls. Participants listened to regular or irregular rhythmic prime sequences followed by grammatically correct and incorrect sentences. They were required to perform grammaticality judgments for each auditorily presented sentence while EEG was recorded. In addition, tasks on syntax violation detection as well as rhythm perception and production were administered. For both participant groups, ungrammatical sentences evoked a P600 in comparison to grammatical sentences and its mean amplitude was larger after regular than irregular primes. Peak analyses of the P600 difference wave confirmed larger peak amplitudes after regular primes for both groups. They also revealed overall a later peak for dyslexic participants, particularly at posterior sites, compared to controls. Results extend rhythmic priming effects on language processing to underlying electrophysiological correlates of morpho-syntactic violation detection in dyslexic adults and matched controls. These findings are interpreted in the theoretical framework of the Dynamic Attending Theory (Jones, 1976, 2019) and the Temporal Sampling Framework for developmental disorders (Goswami, 2011).

中文翻译：

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规则的有节奏的素数会增加诵读困难的成年人和相匹配的对照组语法错误处理中的P600。

规律的音乐节奏会随着时间的流逝吸引注意力并促进处理。先前的研究表明，对于有阅读障碍和特定语言障碍的儿童，规律的节律刺激有益于后续的句法处理。目前的脑电图研究检查了有节奏的音乐声对P600晚期诱发电位的影响，与诵读困难的成年人和相匹配的对照组的语法错误检测有关。参与者聆听有规律的或不规律的节奏素音序列，然后听语法上正确和不正确的句子。要求他们在记录脑电图时对每个听觉出现的句子进行语法判断。此外，还执行有关语法违规检测以及节奏感知和产生的任务。对于两个参与者组，与语法句子相比，非语法句子诱发了P600，经过规则的质数后，其平均振幅更大。P600差波的峰分析确认了两组在常规灌注后的较大峰幅度。他们还发现，与对照组相比，阅读障碍者的总体峰值较晚，尤其是在后位。结果将有节奏的启动对语言处理的影响扩展到阅读障碍的成年人和相匹配的对照组中的句法-句法违规检测的潜在电生理相关性。这些发现在动态参与理论的理论框架（Jones，1976，2019）和发育性疾病的时间抽样框架（Goswami，2011）中得到了解释。