Upon a deep analysis of the essential and neurological nature of learning disabilities, if a learner experiences severe difficulty in recognizing written symbols, configuring words and alphabets (such as differentiating between 'b' and 'd' or 'saw' and 'was'), along with imbalances in visuospatial processing and working memory; which of the following scientific statements is most authentic and true regarding this specific learning disability?

Understanding Dyslexia

Dyslexia is a neurological-based specific learning disability that primarily affects reading, spelling, and phonological processing. Difficulties in distinguishing between similar-looking letters like 'b' and 'd' or words like 'saw' and 'was' are classic indicators of phonological and visuospatial processing challenges associated with left hemisphere brain functions.

• It is not caused by motor cortex underdevelopment (dysgraphia).
• It is distinct from dyscalculia, which affects mathematical abilities.
• It is a neurodevelopmental condition, not merely a result of environmental malnutrition.