School of Education and Haddad Center for Research in Dyslexia and Reading Disorders, Bar-Ilan University, Ramat-Gan, Israel.
Neuropsychologia. 2012 Aug;50(10):2435-41. doi: 10.1016/j.neuropsychologia.2012.06.014. Epub 2012 Jun 27.
Motor sequence learning has been studied extensively in Developmental dyslexia (DD). The purpose of the present research was to examine procedural learning of letter names and motor sequences in individuals with DD and control groups. Both groups completed the Serial Search Task which enabled the assessment of learning of letter names and motor sequences independently of each other. Control participants learned both the letter names as well as the motor sequence. In contrast, individuals with DD were impaired in learning of the letter names sequence and showed a reliable transfer of the motor sequence. Previous studies proved that motor sequence learning is impaired in DD. The present study demonstrated that this deficit is more pronounced when the task to be learned involves linguistic units. This result implies that the procedural learning system of language is more deficient than the motor procedural learning system in individuals with DD. The dissociation between motor and letter names sequence learning in those with DD also implies that the systems underlying these two tasks are separable.
运动序列学习在发展性阅读障碍（DD）中得到了广泛研究。本研究旨在研究 DD 患者和对照组个体的字母名称和运动序列的程序性学习。两组都完成了序列搜索任务，这使得可以独立评估字母名称和运动序列的学习。对照组参与者学习了字母名称和运动序列。相比之下，DD 患者在学习字母名称序列方面存在障碍，并且运动序列的转移可靠。先前的研究证明，DD 中的运动序列学习受到损害。本研究表明，当要学习的任务涉及语言单位时，这种缺陷更为明显。这一结果意味着，在 DD 患者中，语言的程序性学习系统比运动程序性学习系统更为不足。DD 患者的运动和字母名称序列学习之间的分离也意味着这两个任务所基于的系统是可分离的。
