Weakness of one side of the body. Many people who suffer from nonfluent aphasia also have hemiparesis rather than full paralysis.

Hemiparesis

Partial paralysis involving one side of the body. Many people who suffer from nonfluent aphasia also have hemiplegia, usually on the right side.

Hemiplegia

Located within the frontal lobe, typically in the left hemisphere, Broca's area is a critical region for language production. Its function is so essential that damage to this area can lead to difficulties in speaking fluently.

Broca's Area

A language impairment characterized by difficulty with speech production but not with language comprehension. This type of aphasia results from damage in Broca's area.

University of Rochester

New York University

- Paraphasia
- Nonfluent speech
- Apraxia
- Nonfluent aphasia
- Fluent aphasia
- Global aphasia

Types of Aphasia

Breedlove, S. & Watson, N. (2017). Behavioral neuroscience, eighth edition. Oxford University Press.

Behavioral Neuroscience 8th Edition

Widespread damage to the left-hemisphere can cause global aphasia which is the total loss of ability to understand language, or to speak, read, or write. 

Global Aphasia

A symptom of aphasia that is distinguished by the substitution of a word by a sound, an incorrect word, an unintended word, or a neologism.

Paraphasia

Talking with considerable effort, short sentences, and the absence of the usual melodic character of conversational speech.

Nonfluent speech

An impairment in the ability to begin and execute skilled voluntary movements, even though there is no muscle paralysis. Brain damage that results in aphasia also produces apraxia.

Apraxia

A language impairment characterized by fluent, meaningless speech and little language comprehension. This results from damage to the Wernicke's area.

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