Which statement about the historical context of dyslexia is true?

The statement that dyslexia is neurologically based is accurate and reflects the current understanding of the condition within the field of education and psychology. Research indicates that dyslexia arises from differences in the way the brain processes written and spoken language. These neurological differences can affect phonological processing, which is critical for reading and writing. This understanding helps educators and practitioners tailor interventions that address the specific challenges faced by individuals with dyslexia, utilizing strategies that align with their unique processing styles.

The other statements lack support from research. Dyslexia has been shown to have a hereditary component, indicating that it can run in families. While environmental factors can influence its manifestation, dyslexia is primarily a complex interplay of genetic and neurological factors rather than being strictly an environmental issue. Additionally, categorizing dyslexia solely as a visual impairment is overly simplistic; while visual processing issues can be part of the experience for some individuals, dyslexia encompasses a broader range of cognitive challenges that extend beyond just visual aspects.