Which psychological disorder is characterized by the loss of the ability to speak, write, or comprehend language?

• A. Apraxia
• B. Dysarthria
• C. Agnosia
• D. Aphasia

Answer: (D)

Verified step by step guidance

1. Step 1: Understand the key terms related to language and communication disorders in psychology and neurology.
2. Step 2: Define Apraxia as a motor disorder affecting the ability to perform purposeful movements, not specifically language comprehension or production.
3. Step 3: Define Dysarthria as a speech disorder caused by muscle weakness affecting articulation, but not necessarily language comprehension or writing.
4. Step 4: Define Agnosia as a disorder involving difficulty in processing sensory information, such as recognizing objects, but not directly related to language abilities.
5. Step 5: Define Aphasia as a disorder characterized by the loss or impairment of the ability to speak, write, or comprehend language, which matches the description in the problem.