Cognitive tests used in this study: The procedure, measures, and evaluated cognitive functions
| Test . | Procedure . | Evaluations . | Cognitive function . |
|---|---|---|---|
| Symbol Digit Modalities Test (SDMT) | A symbol is assigned to each number 1 to 9 and is presented to the subject. Then, the subject is asked to pair a list of symbols to the numbers in 90 s. | Number of correct answers | Processing speed; attention |
| California Verbal Learning Test (CVLT) | A list of 16 nouns (list A) is read by the examiner to the subject and is recalled immediately, with a delay, cued or free, and with an interference (another list of 16 nouns; list B). | CVLT-TL (Total Learning): Total correct answers of five trials of the immediate recall | Declarative memory |
| CVLT-LD (Long Delay): Number of words recalled from list A after 20 min | |||
| Paced Auditory Serial Addition Test (PASAT) | A list of numbers is read by the computer, and the subject must add the last two numbers read. | Number of correct answers | Working memory; executive function |
| Test . | Procedure . | Evaluations . | Cognitive function . |
|---|---|---|---|
| Symbol Digit Modalities Test (SDMT) | A symbol is assigned to each number 1 to 9 and is presented to the subject. Then, the subject is asked to pair a list of symbols to the numbers in 90 s. | Number of correct answers | Processing speed; attention |
| California Verbal Learning Test (CVLT) | A list of 16 nouns (list A) is read by the examiner to the subject and is recalled immediately, with a delay, cued or free, and with an interference (another list of 16 nouns; list B). | CVLT-TL (Total Learning): Total correct answers of five trials of the immediate recall | Declarative memory |
| CVLT-LD (Long Delay): Number of words recalled from list A after 20 min | |||
| Paced Auditory Serial Addition Test (PASAT) | A list of numbers is read by the computer, and the subject must add the last two numbers read. | Number of correct answers | Working memory; executive function |