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Assessing Dyslexia at Six Year of Age

Assessing Dyslexia at Six Year of Age

Published on: May 1, 2020

DOES DYSLEXIA DEVELOP FROM LEFT-EYE DOMINANCE?

David S Mather¹, Todd M Milford¹, Lona M Mcrae¹

¹1 University of Victoria.

Perceptual and Motor Skills

|October 17, 2015

Summary

This summary is machine-generated.

Left-eye dominance may cause reading failure via impaired right hemisphere letter encoding. Delaying writing instruction until age 8 could prevent dyslexia and spelling disabilities in at-risk children.

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Area of Science:

Neuroscience
Developmental Psychology
Educational Psychology

Background:

Left-eye sighting dominance is a less-studied factor in reading development.
The right hemisphere plays a crucial role in letter encoding and reading acquisition.
Dyslexia presents with various subtypes, including phonological impairments.

Purpose of the Study:

To explore the link between left-eye dominance and reading failure.
To propose how right hemisphere dysfunction in letter encoding contributes to dyslexia.
To suggest preventative strategies for reading and spelling disabilities.

Main Methods:

Theoretical analysis and synthesis of existing evidence.
Postulation of compensatory strategies in reading development.
Comparative analysis with left-hand inverted writing posture development.

Main Results:

Left-eye dominance may lead to reading failure through dysfunctional right hemisphere letter encoding.
Compensatory strategies can result in phonologically impaired/proficient dyslexia and spelling disability.
Delaying writing until age 8 is hypothesized to prevent these disorders.

Conclusions:

Premature introduction of writing may exacerbate reading difficulties in susceptible children.
Early speech categorization in at-risk children warrants further investigation from this perspective.
Interventions targeting writing readiness could mitigate dyslexia and spelling impairments.