Aphasia is best described as ?

• A. Vision impairment due to retinopathy.
• B. Hearing loss due to aging.
• C. A memory loss syndrome.
• D. A language disorder affecting speaking, understanding, reading, or writing, often resulting from a stroke.

Answer: (D)

Aphasia is a language disorder caused by brain injury, most often after a stroke. It affects the ability to speak, understand spoken language, read, or write, because the brain areas that process language are damaged. It’s not a problem with sight, hearing, or memory, but with language processing. People with aphasia may struggle to produce fluent speech, find the right words, understand what others are saying, or read and write in ways that don’t convey meaning properly. The language problems reflect disruption in language centers in the brain, typically in the left hemisphere, and the pattern can be expressive, receptive, or mixed.

The other descriptions describe issues in vision, hearing, or memory, which are separate from aphasia and do not capture the core language impairment involved in aphasia.