Changes in reading strategies in school-age children

Area of Science:

• Cognitive Psychology
• Developmental Psychology
• Neuroscience

Background:

• The Double-Route Cascaded Model posits two reading strategies: lexical and sublexical.
• Spanish reading presents unique challenges regarding strategy application and shifts.
• Research on strategy shifting costs in developmental dyslexia is limited.

Purpose of the Study:

• To investigate the cost of shifting between lexical and sublexical reading strategies.
• To compare strategy efficiency and shifting costs in children with and without developmental dyslexia.
• To identify distinct shifting patterns in developmental dyslexia subgroups.

Main Methods:

• Utilized a reading task with real words and pseudowords.
• Assessed reading strategy efficiency and shifting costs.
• Compared performance between children with developmental dyslexia and normal controls.

Main Results:

• Both reading strategies are present in typical readers and children with developmental dyslexia.
• In controls, both strategies improve with increased literacy exposure; in dyslexia, only the lexical strategy improves.
• Shifting between strategies incurs low costs for controls but significantly higher costs for children with developmental dyslexia, revealing distinct subgroups.

Conclusions:

• Developmental dyslexia is associated with impaired sublexical strategy development and increased costs in shifting between reading strategies.
• The findings highlight the heterogeneity within developmental dyslexia, suggesting distinct subgroups based on strategy shifting patterns.
• Understanding these differences is crucial for targeted reading interventions.