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Learning Disabilities

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Related Experiment Video

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Nonlinear spelling in graphemic buffer deficit.

Teresa Schubert¹, Lyndsey Nickels¹

¹a Department of Cognitive Science, ARC Centre of Excellence in Cognition and its Disorders (CCD) , Macquarie University , Sydney , NSW , Australia.

Cognitive Neuropsychology

|June 30, 2016

Summary

This summary is machine-generated.

This study details nonlinear spelling in an individual with a graphemic buffer deficit. Findings challenge current models of the graphemic buffer by showing temporal and spatial spelling aspects can decouple.

Keywords:

Spelling acquired dysgraphia competitive queuing graphemic buffer written spelling

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Assessing Dyslexia at Six Year of Age

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Published on: May 1, 2020

Area of Science:

Cognitive Psychology
Neuroscience
Linguistics

Background:

The graphemic buffer is a cognitive system responsible for temporarily storing letter information during spelling.
Understanding its function is crucial for explaining typical and atypical writing processes.

Observation:

A case study of C.T.J., who exhibits an acquired graphemic buffer deficit.
C.T.J. produced nonlinear spelling, writing letters out of temporal order but maintaining spatial order (later letters to the right).

Findings:

Detailed analysis of nonlinear spelling, providing more data than prior reports.
Demonstrates a decoupling of temporal sequencing and spatial positioning in spelling.

Implications:

Challenges competitive queuing models of the graphemic buffer.
Suggests graphemic buffer theories need to account for independent temporal and spatial processing.
Offers insights into the cognitive mechanisms underlying spelling and writing disorders.