Current perspectives on the cerebellum and reading development

NEUROSCIENCE AND BIOBEHAVIORAL REVIEWS

卷:92

Review

Alvarez, Travis A.^1,2,3  Fiez, Julie A.^1,2,3,4 

[1] Univ Pittsburgh, Dept Psychol, 210 South Bouquet St, Pittsburgh, PA 15260 USA

[2] Learning Res & Dev Ctr, 3939 Ohara St, Pittsburgh, PA 15260 USA

[3] Univ Pittsburgh, Ctr Neural Basis Cognit, Pittsburgh, PA USA

[4] Univ Pittsburgh, Dept Commun Sci & Disorders, Pittsburgh, PA USA

关键词: Cerebellar deficit hypothesis;    Reading development;    Network;    Decoding;    Phonological;    Semantic;   

DOI  :  10.1016/j.neubiorev.2018.05.006

来源: Elsevier

【 摘 要 】

The dominant neural models of typical and atypical reading focus on the cerebral cortex. However, Nicolson et al. (2001) proposed a model, the cerebellar deficit hypothesis, in which the cerebellum plays an important role in reading. To evaluate the evidence in support of this model, we qualitatively review the current literature and employ meta-analytic tools examining patterns of functional connectivity between the cerebellum and the cerebral reading network. We find evidence for a phonological circuit with connectivity between the cerebellum and a dorsal fronto-parietal pathway, and a semantic circuit with cerebellar connectivity to a ventral frontotemporal pathway. Furthermore, both cerebral pathways have functional connections with the mid-fusiform gyrus, a region implicated in orthographic processing. Consideration of these circuits within the context of the current literature suggests the cerebellum is positioned to influence both phonological and word-based decoding procedures for recognizing unfamiliar printed words. Overall, multiple lines of research provide support for the cerebellar deficit hypothesis, while also highlighting the need for further research to test mechanistic hypotheses.

【 授权许可】

Free