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Related Experiment Videos

A reverse length effect in dysphasic naming: when elephant is easier than ant

W Best1

  • 1Psychology Department, Birkbeck College, London.

Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
|December 1, 1995
PubMed
Summary

Individuals with dysphasia typically struggle with longer word recall. This study details a unique case where a patient with dysphasia shows improved picture naming for longer words, a reverse length effect.

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Area of Science:

  • Neuroscience
  • Psycholinguistics
  • Speech and Language Pathology

Background:

  • Previous research on dysphasia indicates that word length negatively impacts picture naming accuracy.
  • Studies often report worse performance with longer stimulus items or no significant effect of stimulus length.

Observation:

  • This paper presents a case study of an individual with dysphasia exhibiting a reverse length effect.
  • The patient demonstrates superior performance in naming pictures with longer word labels compared to shorter ones.

Findings:

  • The observed reverse length effect challenges existing models of word production in dysphasia.
  • The study analyzes three computational models, evaluating their ability to account for this atypical finding.
  • Data from the case study are used to test predictions derived from Butterworth's (1989) model.

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Implications:

  • Findings suggest a need to refine current models of speech production to accommodate reverse length effects in dysphasia.
  • This case provides valuable insights into the heterogeneity of language processing deficits in acquired language disorders.
  • Further research is warranted to explore the neural and cognitive underpinnings of this phenomenon.