Motor Aphasia Definition : A person with aphasia may have difficulty speaking, reading, writing, recognizing the names of objects, or understanding what other people have said.. Aphasia is caused by a brain injury, as may occur during. Something, such as a machine or an engine, that produces or imparts motion. Nonfluent aphasia lesions to anterior portion of language center of dominant hemisphere slow, effortful, pauses, disturbed prosody fluent aphasia lesions to posterior language center of dominant hemisphere effortless with normal/fast rate, good intonation and stress patterns For most people, these areas are on the left side of the brain. Aphasia definition aphasia is condition characterized by either partial or total loss of the ability to communicate verbally or using written words. Particularly, movement with increased rapidity; Learn more about the symptoms, causes, and types in this article. Aphasia is a disorder that results from damage to portions of the bra