A patient cannot name, describe, or demonstrate the use of a toothbrush. Which condition is most commonly associated with this presentation?

• A. Anomia
• B. Visual object agnosia
• C. Impaired figure ground
• D. Cortical blindness

Answer: (B)

Recognizing objects by sight relies on the ventral (“what”) pathway. When this pathway is disrupted, a person can see features but cannot link them to the identity or use of familiar objects. That is visual object agnosia. In this scenario, the patient cannot name, describe, or demonstrate how to use a toothbrush because the visual input fails to access stored knowledge about what the object is and its function, even though basic vision is intact. This distinguishes it from anomia, which is a language retrieval problem and wouldn’t necessarily prevent demonstrating use; from visual figure-ground issues, which concern separating an object from its background; and from cortical blindness, which would severely impair overall vision.