The D2 Test measures processing speed and quality of performance of individuals, allowing for a neuropsychological estimation of individual attention and concentration performance.
"Digit cancellation" measures processing speed; sustained attention, visual scanning, activation and inhibition of responses.
Additional tests that will be included are: Trail making A and B (measuring processing speed, attention and mental flexibility) and the 15 Words test (measuring memory).
On day 2, patients completed a cognitive battery to measure processing speed, working memory, inductive reasoning, long-term memory, prospective memory and verbal ability.
The adolescents completed a neurocognitive test battery measuring processing speed, working memory, cognitive inhibition, cognitive flexibility, verbal learning and verbal memory, and questionnaires addressing demographic data, depression symptoms, anxiety traits, fatigue and sleep problems.
2) Trail Making Test, Part A and B [ 23]: these tests measure processing speed and executive function, respectively.
In order to measure processing speed a task called Baseline Speed was used, where participants had to respond as quickly as possible, by pressing a mouse button, when a fixation cross presented at the center of the computer screen changed into a square.
Their processing cognitive measure processing can be mathematically represented as follows.
We measured processing times of less than 150 ms for every location calculation.
The Symbol Search and Coding core subtests from the WAIS IV [ 53] were employed to measure processing speed.
For example, quality of alert responsiveness is designed to measure "processing" alertness, not just simple awake, eyes-open states.
