Neurobiology of Reading and Dyslexia Flashcards
6 cards from real CALT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Neurobiology of Reading and Dyslexia flashcards as text
Neuroimaging research on dyslexia consistently identifies reduced activation in which brain region during reading?
Answer: The left posterior temporal-parietal region
fMRI studies consistently show underactivation in left posterior brain regions, particularly the temporoparietal and occipito-temporal areas, during reading in individuals with dyslexia.
The phonological deficit hypothesis in dyslexia research refers to:
Answer: A core weakness in processing the sound structure of spoken language
The phonological deficit hypothesis proposes that the core neural deficit in dyslexia involves difficulty processing the sound structure of language.
Research on brain plasticity and dyslexia intervention has demonstrated that:
Answer: Effective structured literacy intervention produces measurable neurological changes
Neuroimaging studies show that effective structured literacy intervention produces measurable increases in activation of the left hemisphere reading circuitry, demonstrating brain plasticity.
Magnocellular deficit theory proposes that some individuals with dyslexia have difficulty with:
Answer: Processing rapid visual and auditory temporal information
Magnocellular deficit theory suggests that a subset of individuals with dyslexia have weaknesses in visual and auditory processing pathways that handle rapid temporal processing.
The heritability of dyslexia suggests that:
Answer: Genetic factors significantly contribute to the risk of developing dyslexia
Twin and family studies indicate that dyslexia is highly heritable at approximately 50 to 70 percent, with multiple genetic loci contributing to the risk.
The double deficit hypothesis proposed by Wolf and Bowers identifies which two core deficits?
Answer: Phonological awareness weakness and slow Rapid Automatized Naming
Wolf and Bowers proposed that phonological awareness and naming speed are two distinct but related deficit pathways in dyslexia, and having both predicts the most severe reading difficulties.