Results 151 to 160 of about 73,004 (270)
Altered functional connectivity of basal forebrain subregions (Ch1‐3, Ch4) and widespread cerebral hypometabolism were identified in Alzheimer's disease using simultaneous PET/MRI. Spatial correspondence with normative neurotransmitter receptor and transporter maps suggested that serotonergic and dopaminergic systems may contribute to AD‐related ...
Yujie He +11 more
wiley +1 more source
To understand multifactorial conditions such as Alzheimers disease (AD) we need brain signatures that predict the impact of multiple pathologies and their interactions.
Anderson, RJ +9 more
core
From Low Field to High Value: Robust Cortical Mapping From Low‐Field MRI
Recon‐any processes a brain MRI acquired with arbitrary contrast, resolution, and field strength to generate morphometric measurements comparable to FreeSurfer's recon‐all, including cortical (parcellation, thickness, etc.) and volumetric (segmentation, regional volumes) outputs.
Karthik Gopinath +15 more
wiley +1 more source
Hippocampal theta power during memory retrieval predicts evidence accumulation in a mnemonic similarity task. Trial‐level MEG signals were integrated with a linear ballistic accumulator model, revealing that theta oscillations modulate decision dynamics, linking neural variability to memory‐based discrimination performance.
Pei L. Robins +7 more
wiley +1 more source
Using 7 T structural MRI, we mapp layer‐dependent microstructural profiles of hippocampal subfield CA1 in vivo and linked them to individual differences in memory performance. The results reveal detectable, layer‐specific myelin patterns that mirror canonical histological organization, providing a framework for studying microstructural alterations in ...
Dayana Hayek +13 more
wiley +1 more source
rTCT: Rodent Triangle Completion Task to Facilitate Reverse Translational Study of Path Integration
ABSTRACT Path integration is navigation in the absence of environmental landmarks and is a primary cognitive mechanism underlying spatial memory. Path integration performance is primarily assessed in humans using the Triangle Completion Task (TCT). In humans, TCT has shown promise for the early diagnosis of Alzheimer's disease.
Stephen Duncan +13 more
wiley +1 more source
ABSTRACT The importance of precise timing of neuronal activity, relative to ongoing slower oscillations, is reshaping the engram theory and our understanding of how memories are encoded and stored. The hippocampal theta‐wave phase‐encoding of neuronal firing predicts behavioral outcomes and cognitive performance in memory tasks.
Paula Gonçalves Vieira Teixeira +3 more
wiley +1 more source
ABSTRACT The ability to remember (i.e., memory ability) and to accurately discern memory function (i.e., metamemory) are both important facets of cognition. In the present study, we examined the shared and distinct sources of variance across memory ability and metamemory using psychometrically validated measures of memory ability, metamemory, and ...
Jennifer L. Crawford +5 more
wiley +1 more source

