Underlying cause(s) of letter perseveration errors

Simon Fischer-Baum, Brenda Rapp

Research output: Contribution to journalArticlepeer-review

28 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)305-318
Number of pages14
Issue number2
StatePublished - Jan 2012


  • Dysgraphia
  • Inhibition
  • Letter perseveration errors
  • Spelling

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Cognitive Neuroscience
  • Behavioral Neuroscience


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