Which type of aphasia is characterized by limited phrase length and often single-word responses?

The type of aphasia characterized by limited phrase length and often single-word responses is non-fluent aphasia. This condition typically arises from damage to the frontal lobe, particularly Broca's area, which is involved in speech production. Individuals with non-fluent aphasia may have difficulty forming complete sentences and may produce speech that is effortful and disjointed, typically consisting of short phrases or single words.

In contrast, fluent aphasia involves the production of speech that is grammatically correct but lacks meaningful content, often resulting in incoherent sentences. Conductive aphasia, while it can include some difficulties with phrase length, primarily affects the ability to repeat words and phrases despite relatively fluent speech production. Global aphasia encompasses severe impairments in both expressive and receptive language abilities, resulting in minimal speech output and understanding, but it is more widespread than just limited phrase length. Non-fluent aphasia stands out due to its specific characteristics of reduced speech output and structure, which aligns directly with the question asked.