Tablet-based Cognitive Assessment Tool (TabCAT) in a multisite study of early-onset Alzheimer's disease.
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Njamnshi Wepnyu Yembe, Chiotis Konstantinos, Tsoy Elena, Blazhenets Ganna, Maiti Piyush, Zhang Jiaxiuxiu, Allen Isabel Elaine, Rocha Salma, Shankar Ranjani P, Amuiri Alinda, Lawson Mawuli, Aisen Paul, Beckett Laurel, Eloyan Ani, Hammers Dustin B, Kirby Kala, Koeppe Robert, Kukull Walter A, Toga Arthur W, Atri Alireza, Clark David, Day Gregory S, Duara Ranjan, Graff-Radford Neill R, Grant Ian, Honig Lawrence S, Johnson Erik C B, Jones David T, Masdeu Joseph, Mendez Mario F, Musiek Erik, Onyike Chiadi U, Riddle Meghan, Rogalski Emily, Salloway Steven, Sha Sharon J, Turner Raymond Scott, Wingo Thomas S, Wolk David A, Womack Kyle, Kramer Joel H, Touroutoglou Alexandra, Brickhouse Michael J, Jack Clifford R, Vemuri Prashanthi, Taurone Alexander, Thangarajah Maryanne, Nudelman Kelly, Carrillo Maria C, Dickerson Bradford C, Apostolova Liana G, Possin Katherine L, Rabinovici Gil D, La Joie Renaud, LEADS Consortium
Аннотация
METHODS: We examined the convergent, diagnostic, and neuroanatomical validity of Tablet-based Cognitive Assessment Tool (TabCAT) tests in the multisite Longitudinal Early-Onset Alzheimer's Disease Study. Four hundred seventy-five participants from 16 sites (83 cognitively unimpaired participants, 146 individuals diagnosed with mild cognitive impairment [MCI], and 246 with mild dementia) underwent TabCAT testing, including two executive/attentional tasks (Match and Flanker) and two visuospatial tasks (Line Length and Line Orientation).
RESULTS: TabCAT tests showed good convergent validity with traditional pen-and-paper tests. Match was the most accurate TabCAT test in differentiating among clinical groups (controls vs. MCI vs. dementia) and predicting amyloid positron emission tomography (PET) positivity in clinically impaired participants. TabCAT tests were associated with regional tau PET patterns.
DISCUSSION: TabCAT digital measures have promise for frontline identification of patients with EOAD.
HIGHLIGHTS: Four hundred seventy-five participants from 16 US sites underwent tablet-based cognitive assessment. Digital tests assessed executive function and visuospatial abilities. Digital tests correlated with traditional pen-and-paper cognitive tests. Match (test of executive function) differentiated clinical groups. Digital tests were associated with amyloid positron emission tomography (PET) status and regional tau PET patterns.