A. Description of neuropsychological tests
Neuropsychological Tests
Telephone Interview for Cognitive Status: Participants complete simple tasks (e.g., count backwards from 20 to 1) designed to assess attention, orientation to place and time, memory and conceptualization.
Symbol Digits Modalities Test: Participants examine a series of nine geometric designs and for each symbol in the sequence, search a key for that symbol and substitute a number, either orally or in writing, for the symbol.
Memory Assessment Scale (MAS) List Learning subtest: For this standardized test assessing list acquisition abilities and memory, participants are read a 12-item list of semantically related words and asked to recall as many as possible. The list is read for up to 6 learning trials. After both a short-delay and a long-delay filled with other tasks, participants are asked to recall as many words as possible from the list.
Clox 1&2: Participants are asked to first draw (Clox 1) and then to copy (Clox 2) a clock, with the hands set to a specified time.
D-KEFS Letter Fluency subtest: Participants state aloud as many words as they can think of within a 60 second time period that begin with a specified letter (F, A, and S).