semantic fluency
A neuropsychological test measuring the ability to generate words within a specific category within a time limit.
Full Definition
Semantic fluency is a verbal fluency test that assesses language function, semantic memory, and executive control by requiring patients to generate as many words as possible within a specific semantic category (such as animals, foods, or clothing) within a set time period, typically 60 seconds. This test evaluates the integrity of semantic memory networks, word retrieval abilities, and cognitive flexibility. Performance patterns can help differentiate between various types of dementia and localize brain dysfunction, with semantic fluency being particularly sensitive to temporal lobe and language network integrity.
Usage
Usage note: Distinguish from phonemic fluency, which uses letter cues rather than semantic categories.
In Context
- "Semantic fluency for animals was significantly reduced at 8 words, suggesting semantic memory impairment." — Neuropsychological test results
- "The patient showed preserved phonemic but impaired semantic fluency, consistent with temporal lobe pathology." — Cognitive assessment summary