Results 11 to 20 of about 688,512 (311)

Dual task impairments in vascular dementia [PDF]

open access: yes, 2010
Several studies have shown that people with Alzheimer's disease (AD) demonstrate difficulties in doing two things at once or 'dual-tasking' and that this dual task impairment is insensitive to normal ageing, chronic depression or prodromal conditions ...
Della Sala, Sergio   +3 more
core   +4 more sources

Structural MRI Correlates of Episodic Memory Processes in Parkinson's Disease Without Mild Cognitive Impairment. [PDF]

open access: yes, 2015
BackgroundChanges in episodic memory are common early in Parkinson's disease (PD) and may be a risk factor for future cognitive decline. Although medial temporal lobe (MTL) memory and frontostriatal (FS) executive systems are thought to play different ...
Filoteo, J Vincent   +3 more
core   +2 more sources

Does Physical Activity Influence Semantic Memory Activation in Amnestic Mild Cognitive Impairment? [PDF]

open access: yes, 2011
The effect of physical activity (PA) on functional brain activation for semantic memory in amnestic mild cognitive impairment (aMCI) was examined using event-related functional magnetic resonance imaging during fame discrimination.
Antuono, Piero   +10 more
core   +2 more sources

Social defeat drives hyperexcitation of the piriform cortex to induce learning and memory impairment but not mood-related disorders in mice

open access: yesTranslational Psychiatry, 2022
Clinical studies have shown that social defeat is an important cause of mood-related disorders, accompanied by learning and memory impairment in humans. The mechanism of mood-related disorders has been widely studied. However, the specific neural network
Hanjie Wang   +9 more
doaj   +1 more source

Evaluation of the relationship between retinal nerve layer thickness and corpus callosum atrophy in MRI with memory impairment in patients with multiple sclerosis

open access: yesJournal of Family Medicine and Primary Care, 2022
Introduction: Multiple sclerosis (MS) is a chronic neurological disease in which demyelination and loss of axons lead to disruption of communication between neurons in the central nervous system. Cognitive impairment occurs in a significant proportion of
Hamed Amirifard   +5 more
doaj   +1 more source

Sickle cell trait and risk of cognitive impairment in African-Americans: The REGARDS cohort [PDF]

open access: yes, 2019
Background: Sickle cell anemia may be associated with cognitive dysfunction, and some complications of sickle cell anemia might affect those with sickle cell trait (SCT), so we hypothesized that SCT is a risk factor for cognitive impairment. Methods:
Cahill, Christina R.   +12 more
core   +1 more source

The ubiquitin conjugating enzyme Ube2W regulates solubility of the Huntington's disease protein, huntingtin

open access: yesNeurobiology of Disease, 2018
Huntington's disease (HD) is caused by a CAG repeat expansion that encodes a polyglutamine (polyQ) expansion in the HD disease protein, huntingtin (HTT). PolyQ expansion promotes misfolding and aggregation of mutant HTT (mHTT) within neurons.
Bo Wang   +8 more
doaj   +1 more source

Sex differences in HIV effects on visual memory among substance-dependent individuals [PDF]

open access: yes, 2016
HIV’s effects on episodic memory have not been compared systematically between male and female substance-dependent individuals. We administered the Brief Visuospatial Memory Test–Revised (BVMT–R) to 280 substance-dependent HIV+ and HIV– men and women ...
Gonzalez, Raul   +5 more
core   +2 more sources

The effect of missing data and imputation on the detection of bias in cognitive testing using differential item functioning methods

open access: yesBMC Medical Research Methodology, 2022
Background Item response theory (IRT) methods for addressing differential item functioning (DIF) can detect group differences in responses to individual items (e.g., bias).
E. Nichols   +13 more
doaj   +1 more source

Differential medial temporal lobe morphometric predictors of item- and relational-encoded memories in healthy individuals and in individuals with mild cognitive impairment and Alzheimer's disease. [PDF]

open access: yes, 2017
INTRODUCTION:Episodic memory processes are supported by different subregions of the medial temporal lobe (MTL). In contrast to a unitary model of memory recognition supported solely by the hippocampus, a current model suggests that item encoding engages ...
Conejero-Goldberg, Concepcion   +7 more
core   +1 more source

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