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Phonological and semantic priming in children with reading disability
Rebecca S Betjemann1, Janice M Keenan
1Institute for Behavioral Genetics, University of Colorado, UCB 447, Boulder, CO 80309-0447, USA. betjeman@colorado.edu
Child Development
|August 23, 2008
Summary
Children with reading disability (RD) show significant priming deficits in semantic, phonological, and combined tasks. These challenges impact both word reading and comprehension, extending beyond just reading level.
Area of Science:
- Cognitive Psychology
- Developmental Psychology
- Neuroscience
Background:
- Lexical priming is crucial for word recognition.
- Children with reading disability (RD) often exhibit language processing difficulties.
- Understanding priming deficits can illuminate the nature of RD.
Purpose of the Study:
- To investigate lexical priming in children with RD compared to controls.
- To examine priming across visual and auditory modalities.
- To determine if priming deficits are specific to RD or a general consequence of lower reading ability.
Main Methods:
- Assessed lexical priming using visual and auditory lexical decision tasks.
- Compared children with RD (mean age 11.5 years) to age-matched controls.
- Analyzed semantic, phonological/graphemic, and combined priming effects.
Main Results:
- Children with RD showed deficits in semantic, phonological/graphemic, and combined priming in the visual task.
- Similar semantic priming deficits were observed in the auditory task.
- Priming differences were more pronounced in children with RD than in controls with similar reading levels, indicating RD-specificity.
Conclusions:
- Children with RD exhibit broad lexical priming deficits, particularly in semantic processing.
- These deficits are not solely due to lower reading levels but are characteristic of reading disability.
- Semantic priming impairments may underlie both word reading and reading comprehension difficulties in RD.
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