Results 1 to 10 of about 352,942 (366)

Topographic numerosity maps cover subitizing and estimation ranges

open access: yesNature Communications, 2021
Here, the authors show that the brain represents small and large numerosity ranges in a continuous topographic map, in line with the idea that differences in map properties underlie differences in perception.
Yuxuan Cai   +6 more
doaj   +1 more source

Evaluating the effects of brain injury, disease and tasks on cognitive fatigue

open access: yesScientific Reports, 2023
Because cognitive fatigue (CF) is common and debilitating following brain injury or disease we investigated the relationships among CF, behavioral performance, and cerebral activation within and across populations by combining the data from two cross ...
Glenn R. Wylie   +6 more
doaj   +1 more source

Neuroimaging Feature Extraction using a Neural Network Classifier for Imaging Genetics [PDF]

open access: yesBMC Bioinformatics 24, 271 (2023), 2022
A major issue in the association of genes to neuroimaging phenotypes is the high dimension of both genetic data and neuroimaging data. In this article, we tackle the latter problem with an eye toward developing solutions that are relevant for disease prediction.
arxiv   +1 more source

Neuroimaging in Schizophrenia [PDF]

open access: yesNeuroimaging Clinics of North America, 2020
Schizophrenia is a chronic psychotic disorder with a lifetime prevalence of about 1%. Onset is typically in adolescence or early adulthood; characteristic symptoms include positive symptoms, negative symptoms, and impairments in cognition. Neuroimaging studies have shown substantive evidence of brain structural, functional, and neurochemical ...
Keshavan, Matcheri S.   +5 more
openaire   +3 more sources

Identification of single-dose, dual-echo based CBV threshold for fractional tumor burden mapping in recurrent glioblastoma

open access: yesFrontiers in Oncology, 2023
BackgroundRelative cerebral blood volume (rCBV) obtained from dynamic susceptibility contrast (DSC) MRI is widely used to distinguish high grade glioma recurrence from post treatment radiation effects (PTRE).
Aliya Anil   +7 more
doaj   +1 more source

Neuroimaging in Narcolepsy [PDF]

open access: yesSleep Medicine, 2010
Narcolepsy is a chronic neurological disorder, has no specific cause, and is characterized by excessive daytime sleepiness and uncontrollable sleep attacks. In case of strong emotions such as laughter, anger or joy, a cataplexy (sudden loss of muscle tone, lasting for a short period of time) may occur (1, 2).
Hakyemez, BAHATTİN   +5 more
openaire   +7 more sources

Evaluating blood–brain barrier permeability in a rat model of type 2 diabetes

open access: yesJournal of Translational Medicine, 2020
Background This is an exploratory study using a novel imaging modality, quantitative ultrashort time-to-echo, contrast enhanced (QUTE-CE) magnetic resonance imaging to evaluate the permeability of the blood–brain barrier in a rat model of type 2 diabetes
Ju Qiao   +4 more
doaj   +1 more source

CannaCount: an improved metric for quantifying estimates of maximum possible cannabinoid exposure

open access: yesScientific Reports, 2023
Increasing numbers of individuals have access to cannabinoid-based products containing various amounts of delta-9-tetrahydrocannabinol (THC), cannabidiol (CBD), and other cannabinoids. Exposure to specific cannabinoids likely influences outcomes; however,
Ashley M. Lambros   +6 more
doaj   +1 more source

An in-vivo study of BOLD laminar responses as a function of echo time and static magnetic field strength

open access: yesScientific Reports, 2021
Layer specific functional MRI requires high spatial resolution data. To compensate the associated poor signal to noise ratio it is common to integrate the signal from voxels at a given cortical depth.
Irati Markuerkiaga   +3 more
doaj   +1 more source

Evaluation of Amyotrophic Lateral Sclerosis-Induced Muscle Degeneration Using Magnetic Resonance-Based Relaxivity Contrast Imaging (RCI)

open access: yesTomography, 2021
(1) Background: This work characterizes the sensitivity of magnetic resonance-based Relaxivity Contrast Imaging (RCI) to Amyotrophic Lateral Sclerosis (ALS)-induced changes in myofiber microstructure.
Sudarshan Ragunathan   +7 more
doaj   +1 more source

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