Related Experiment Video
Updated: Aug 11, 2026
06:48
Lexical Decision Task for Studying Written Word Recognition in Adults with and without Dementia or Mild Cognitive Impairment
Published on: June 25, 2019
Modelling assembled spelling: convergence of data from normal subjects and "surface" dysgraphia
1School of Speech Therapy, South Glamorgan Institute of Higher Education, Cardiff, Wales.
Summary
This study evaluates a spelling model for nonwords, finding it broadly predicts surface dysgraphic errors. However, the model needs refinement regarding sound-to-spelling rules and context sensitivity in spelling.
Area of Science:
- Cognitive Psychology
- Neuropsychology
- Linguistics
Background:
- The Barry and Seymour (1988) model explains assembled spelling based on normal nonword spelling.
- Surface dysgraphia presents unique challenges to understanding spelling processes.
Purpose of the Study:
- To test the applicability of the Barry and Seymour assembled spelling model to surface dysgraphia.
- To identify limitations and areas for improvement in the existing spelling model.
Main Methods:
- Deriving predictions from the Barry and Seymour model for surface dysgraphic spelling.
- Comparing model predictions against empirical data from a patient with surface dysgraphia (Baxter and Warrington, 1987).
Main Results:
- The model's general predictions for surface dysgraphic spelling were largely supported by the patient's performance.
- Specific discrepancies highlight areas where the model requires further development.
Conclusions:
- The Barry and Seymour model offers a foundational framework for assembled spelling but needs enhancement.
- Further research should focus on refining the representation of sound-to-spelling correspondences and context-sensitive spelling rules.
