The Dyad-Adaptive Paced Auditory Serial Addition Test (DA-PASAT): Normative data and the effects of repeated testing, simulated malingering, and traumatic brain injury.

ABSTRACT: The Paced Auditory Serial Addition Test (PASAT) is widely used to evaluate processing speed and executive function in patients with multiple sclerosis, traumatic brain injury, and other neurological disorders. In the PASAT, subjects listen to sequences of digits while continuously reporting the sum of the last two digits presented. Four different stimulus onset asynchronies (SOAs) are usually tested, with difficulty increasing as SOAs are reduced. Ceiling effects are common at long SOAs, while the digit delivery rate often exceeds the subject's processing capacity at short SOAs, causing some subjects to stop performing altogether. In addition, subjects may adopt an "alternate answer" strategy at short SOAs, which reduces the test's demands on working-memory and processing speed. Consequent

SUBMITTER: Woods DL 

PROVIDER: S-EPMC5909896 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature