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We aimed to evaluate whether recognition memory can be used to identify patients with amnestic mild cognitive impairment (aMCI) at greater risk for converting to dementia. We recruited 2172 aMCI patients. They were divided into two groups: aMCI with impaired recall but normal recognition (aMCI-IRNR) vs aMCI with impaired recall and impaired recognition (aMCI-IRIR). We compared demographic findings and neuropsychological performance and illustrated the difference in converting to dementia between the two groups. Study subjects consisted of 1022 (47.0%) patients with aMCI-IRNR and 1150 (53.0%) patients with aMCI-IRIR. In most neuropsychological tests except for digit span forward, patients with aMCI-IRIR were more impaired than patients with aMCI-IRNR even after adjustment of their age and sex. Cox analysis adjusting age and gender revealed that the risk of dementia conversion was higher in patients with aMCI-IRIR than in patients with aMCI-IRNR [hazard ratio (HR)=1.400, 95% CI 1.009-1.943; P=0.044]. This study showed that recognition memory can be used to identify patients with amnestic mild cognitive impairment (aMCI) at greater risk for converting to dementia.
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http://dx.doi.org/10.1016/j.jns.2014.09.031 | DOI Listing |
Alzheimers Dement
September 2025
Department of Neurology, University of Michigan, Ann Arbor, Michigan, USA.
Introduction: Mild cognitive impairment (MCI) represents a transitional stage between normal aging and dementia. We investigate associations among cardiovascular and metabolic disorders (hypertension, diabetes mellitus, and hyperlipidemia) and diagnosis (normal; amnestic [aMCI]; and non-amnestic [naMCI]).
Methods: Multinomial logistic regressions of participant data (N = 8737; age = 70.
Asian J Psychiatr
September 2025
National-Local Joint Engineering Research Center of Rehabilitation Medicine Technology, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China; Rehabilitation Industry Institute, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China; Traditional Chinese Medicine Re
Background: Amnestic mild cognitive impairment (aMCI) is characterized by marked episodic memory decline. The hippocampus is essential for episodic memory, and integration of information within its subregions is central to this process. This study examined how alterations in hippocampal subregional network relate to episodic memory impairment in aMCI.
View Article and Find Full Text PDFBrain Commun
September 2025
Bristol Medical School, University of Bristol, Bristol BS8 1QU, England, UK.
As viable pharmacotherapies and blood biomarkers emerge for dementia treatment and screening, there remains a great need for accurate, sensitive biomarkers of cognitive function. We have previously demonstrated that Fastball, a new Electroencephalography (EEG) method for the passive and objective measurement of recognition memory that requires no behavioural memory response or task comprehension, is sensitive to cognitive dysfunction in Alzheimer's disease. Here we present new evidence that Fastball is sensitive to amnestic dysfunction in an earlier stage of the dementia lifecourse, Mild Cognitive Impairment (MCI).
View Article and Find Full Text PDFJ Int Neuropsychol Soc
September 2025
Center for Health Assessment Research and Translation, University of Delaware, Newark, DE, USA.
Objective: Because of the complexity of Alzheimer's Disease (AD) clinical presentations across bio-psycho-social domains of functioning, data-reduction approaches, such as latent profile analysis (LPA), can be useful for studying profiles rather than individual symptoms. Previous LPA research has resulted in more precise characterization and understanding of patients, better clarity regarding the probability and rate of disease progression, and an empirical approach to identifying those who might benefit most from early intervention. Whereas previous LPA research has revealed useful cognitive, neuropsychiatric, or functional subtypes of patients with AD, no study has identified patient profiles that span the domains of health and functioning and that also include motor and sensory functioning.
View Article and Find Full Text PDFJ Prev Alzheimers Dis
August 2025
Department of Clinical Psychology and Psychobiology, University of Santiago de Compostela (USC), Santiago de Compostela, Spain; Cognitive Neuroscience Research and Psychogerontology Group (NeuCogA-Aging), Institute of Psychology (IPsiUS), USC, Santiago de Compostela, Spain; Health Research Institute
Recent technical advances in peripheral blood analysis have enabled precise quantification of Alzheimer´s Disease (AD) biomarkers in the early stages of the AD continuum, in an economical, non-invasive and safe manner. The main objective of this study was to contribute to the clinical-biological characterization of the initial stages of cognitive impairment by measurement of blood and neurostructural AD biomarkers in groups of participants classified according to their cognitive clinical phenotype. Plasma concentrations of p-tau217, p-tau181, total tau, neurofilament light chain and amyloid-β 42/40 ratio biomarkers were measured along with APOE gene variants, hippocampal volume and cortical thickness of the AD signature regions.
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