Aphasia in CBD is revealed through the inability to speak or a difficulty in initiating spoken dialogue and falls under the non-fluent (as opposed to fluent or flowing) subtype of the disorder. This may be related to speech impairment such as dysarthria, and thus is not a true aphasia, as aphasia is related to a change in language function, such as difficulty retrieving words or putting words together to form meaningful sentences. The speech and/or language impairments in CBD result in disconnected speech patterns and the omission of words. Individuals with this symptom of CBD often lose the ability to speak as the disease progresses.