What does the D-KEFS measure?
D-KEFS. Purpose. measure a variety of verbal and nonverbal executive functions. The Delis–Kaplan Executive Function System (D-KEFS) is a neuropsychological test used to measure a variety of verbal and nonverbal executive functions for both children and adults (ages 8–89 years).
What does the D-KEFS verbal fluency test measure?
The D-KEFS Verbal Fluency Test (VF) is comprised of three testing conditions: Letter Fluency, Category Fluency, and Category Switching. The VF measures multiple aspects of verbal behavioural productivity and cognitive flexibility. Alternate forms with normative data are provided for the D-KEFS Verbal Fluency Test.
What does Dkefs category fluency measure?
Category Fluency – category switching is a measure of cognitive flexibility or set shifting. Category Fluency is the ease of semantic knowledge retrieval.
What is a set loss error?
Set-loss errors (also called rule violations) can be conceptualized as a breakdown in the adherence to task-specific rules, and in clinical populations, the propensity to make these errors has shown some specificity for identifying disorders connected with frontal lobes dysfunction.
What is the D-KEFS used for?
D-KEFS assesses the key components of executive functions believed to be mediated primarily by the frontal lobe. With nine stand-alone tests, D-KEFS allows examiners to comprehensively assess the key components of executive functions within verbal and spatial modalities.
Why is verbal fluency important?
Verbal fluency is a cognitive function that facilitates information retrieval from memory. Successful retrieval requires executive control over cognitive processes such as selective attention, selective inhibition, mental set shifting, internal response generation, and self-monitoring.
What part of the brain controls verbal fluency?
Some previous neuroimaging and lesion studies have suggested that category fluency (semantic-based word retrieval) is mediated primarily by temporal cortex, while letter fluency (letter-based word retrieval) is mediated primarily by frontal cortex.
How can I get verbal fluency?
Resource to increase verbal fluency
- The Association Game.
- The Commonality Game I use this word generator website as a prompt.
- Read aloud and over articulate the words you’re saying.
- Lumosity and other brain training resources.
- Freestyle rapping You can do this in your head as well as out loud.
- Improv Comedy.
What is lexical fluency?
Lexical fluency (word generation, Thurstone test): Ask the patient to generate as many words as possible beginning with the letter F in one minute. No proper names or derivatives are allowed. A normal score for a native English speaker with at least a high school education is at least 8 words.
What is the animal fluency test?
Although abbreviated cognitive screening tests exist, few have been studied in the preoperative setting. 3 One of these brief cognitive screens is the animal fluency test (AFT). It requires patients to name as many animals as possible within 60 sec, with one point given for each unique animal.
What does set loss mean?
What is the design fluency test?
Tests of Design Fluency (DF), also known as “figural” or “nonverbal” fluency, represent a method of assessment of executive functioning, commonly used in research and clinical settings. Examinees draw as many different designs as possible in one minute, while avoiding repeating prior designs.