TY - JOUR
T1 - Remote cognitive tests predict neurodegenerative biomarkers in the Insight 46 cohort
AU - Giovane, Martina Del
AU - Giunchiglia, Valentina
AU - Cai, Ziyuan
AU - Leoni, Marguerite
AU - Street, Rebecca
AU - Lu, Kirsty
AU - Wong, Andrew
AU - Popham, Maria
AU - Nicholas, Jennifer M
AU - Trender, William
AU - Hellyer, Peter J
AU - Parker, Thomas D
AU - Murray-Smith, Heidi
AU - Cash, David M
AU - Barnes, Josephine
AU - Sudre, Carole H
AU - Malhotra, Paresh A
AU - Crutch, Sebastian J
AU - Richards, Marcus
AU - Hampshire, Adam
AU - Schott, Jonathan M
N1 - Publisher Copyright:
© 2025 The Author(s). Alzheimer's & Dementia published by Wiley Periodicals LLC on behalf of Alzheimer's Association.
PY - 2025/2/12
Y1 - 2025/2/12
N2 - BACKGROUND: Alzheimer's disease-related biomarkers detect pathology years before symptoms emerge, when disease-modifying therapies might be most beneficial. Remote cognitive testing provides a means of assessing early cognitive changes. We explored the relationship between neurodegenerative biomarkers and cognition in cognitively normal individuals. METHODS: We remotely deployed 13 computerized Cognitron tasks in 255 Insight 46 participants. We generated amyloid load and positivity, white matter hyperintensity volume (WMHV), whole brain and hippocampal volumes at age 73, plus rates of change over 2 years. We examined the relationship between Cognitron, biomarkers, and standard neuropsychological tests. RESULTS: Slower response time on a delayed recognition task predicted amyloid positivity (odds ratio [OR] = 1.79, confidence interval [CI]: 1.15, 2.95), and WMHV (1.23, CI: 1.00, 1.56). Brain and hippocampal atrophy rates correlated with poorer visuospatial performance (b = -0.42, CI: -0.80, -0.05) and accuracy on immediate recognition (b = -0.01, CI: -0.012, -0.001), respectively. Standard tests correlated with Cognitron composites (rho = 0.50, p < 0.001). DISCUSSION: Remote computerized testing correlates with standard supervised assessments and holds potential for studying early cognitive changes associated with neurodegeneration. HIGHLIGHTS: 70% of the Online 46 cohort performed a set of remote online cognitive tasks. Response time and accuracy on a memory task predicted amyloid status and load (SUVR). Accuracy on memory and spatial span tasks correlated with longitudinal atrophy rate. The Cognitron tasks correlated with standard supervised cognitive tests. Online cognitive testing can help identify early AD-related memory deficits.
AB - BACKGROUND: Alzheimer's disease-related biomarkers detect pathology years before symptoms emerge, when disease-modifying therapies might be most beneficial. Remote cognitive testing provides a means of assessing early cognitive changes. We explored the relationship between neurodegenerative biomarkers and cognition in cognitively normal individuals. METHODS: We remotely deployed 13 computerized Cognitron tasks in 255 Insight 46 participants. We generated amyloid load and positivity, white matter hyperintensity volume (WMHV), whole brain and hippocampal volumes at age 73, plus rates of change over 2 years. We examined the relationship between Cognitron, biomarkers, and standard neuropsychological tests. RESULTS: Slower response time on a delayed recognition task predicted amyloid positivity (odds ratio [OR] = 1.79, confidence interval [CI]: 1.15, 2.95), and WMHV (1.23, CI: 1.00, 1.56). Brain and hippocampal atrophy rates correlated with poorer visuospatial performance (b = -0.42, CI: -0.80, -0.05) and accuracy on immediate recognition (b = -0.01, CI: -0.012, -0.001), respectively. Standard tests correlated with Cognitron composites (rho = 0.50, p < 0.001). DISCUSSION: Remote computerized testing correlates with standard supervised assessments and holds potential for studying early cognitive changes associated with neurodegeneration. HIGHLIGHTS: 70% of the Online 46 cohort performed a set of remote online cognitive tasks. Response time and accuracy on a memory task predicted amyloid status and load (SUVR). Accuracy on memory and spatial span tasks correlated with longitudinal atrophy rate. The Cognitron tasks correlated with standard supervised cognitive tests. Online cognitive testing can help identify early AD-related memory deficits.
KW - Humans
KW - Male
KW - Female
KW - Aged
KW - Neuropsychological Tests/statistics & numerical data
KW - Biomarkers
KW - Alzheimer Disease/diagnosis
KW - Brain/pathology
KW - Cohort Studies
KW - Magnetic Resonance Imaging
KW - Cognition/physiology
KW - Hippocampus/pathology
KW - White Matter/pathology
KW - Atrophy/pathology
KW - Amyloid beta-Peptides
UR - http://www.scopus.com/inward/record.url?scp=85218809726&partnerID=8YFLogxK
U2 - 10.1002/alz.14572
DO - 10.1002/alz.14572
M3 - Article
C2 - 39936232
SN - 1552-5260
VL - 21
SP - e14572
JO - Alzheimer's & Dementia
JF - Alzheimer's & Dementia
IS - 2
ER -