In the context of scientific classification and clinical symptoms of specific learning disabilities, if a learner experiences severe difficulty in understanding mathematical symbols, recognizing place value of numbers, performing calculations, and logically solving verbal mathematical problems, while their general intelligence quotient (IQ) and reading-writing abilities are completely normal, what is this specific learning disorder called and what is its primary psychological/neurological basis?

Understanding Dyscalculia

The symptoms described in the question point towards Dyscalculia, which is a specific learning disability. Children suffering from this disorder face severe difficulty in mathematical calculations, numerical concepts, and understanding relationships between numbers.

Key neurological and psychological features include:

• Dysfunction typically localized in the intraparietal sulcus region of the brain.
• Impairment in processing numerical magnitude and spatial representation.
• Difficulty retaining mathematical facts in working memory despite normal overall IQ.