Final answer:
Aphasia is not a single-modality language disorder; it often affects both language comprehension and production. Receptive aphasia is related to comprehension and expressive aphasia to production.
Step-by-step explanation:
Aphasia is an acquired disorder affecting the ability to communicate, typically involving both language production and comprehension capabilities, rather than being a single-modality language disorder. Therefore, the statement that aphasia is a single-modality language disorder is False. Receptive aphasia is the loss of the ability to understand received language, whether spoken or written, typically associated with damage to Wernicke's area. Patients with this type of aphasia may speak fluently but often produce sentences devoid of meaning or use incorrect words and phrases because they do not comprehend their own language. On the other hand, damage to Broca's area results in expressive aphasia where patients have difficulty with language production. Although they understand language, they struggle to speak or write, often producing broken or halting speech, omitting words. Both receptive and expressive aphasias are considered multimodal as they impact multiple aspects of language function. Furthermore, other types of aphasia, such as conduction aphasia, involve the disconnection between language comprehension and speech production without loss of these specific functions.