Underlying cause(s) of letter perseveration errors

NEUROPSYCHOLOGIA

卷:50

Article

Fischer-Baum, Simon¹  Rapp, Brenda² 

[1] Univ Illinois, Beckman Inst, Urbana, IL 61801 USA

[2] Johns Hopkins Univ, Dept Cognit Sci, Baltimore, MD 21218 USA

关键词: Letter perseveration errors;    Dysgraphia;    Spelling;    Inhibition;   

DOI  :  10.1016/j.neuropsychologia.2011.12.001

来源: Elsevier

【 摘 要 】

Perseverations, the inappropriate intrusion of elements from a previous response into a current response, are commonly observed in individuals with acquired deficits. This study specifically investigates the contribution of failure-to activate and failure-to-inhibit deficit(s) in the generation of letter perseveration errors in acquired dysgraphia. We provide evidence from the performance 12 dysgraphic individuals indicating that a failure to activate graphemes for a target word gives rise to letter perseveration errors. In addition, we also provide evidence that, in some individuals, a failure-to-inhibit deficit may also contribute to the production of perseveration errors. (C) 2011 Elsevier Ltd. All rights reserved.

【 授权许可】

Free