Results 1 to 10 of about 265,038 (294)

Topographic numerosity maps cover subitizing and estimation ranges

Nature 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, Shir Hofstetter, Jelle van Dijk, Wietske Zuiderbaan, Wietske van der Zwaag, Ben M. Harvey, Serge O. Dumoulin   +6 more
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Evaluating the effects of brain injury, disease and tasks on cognitive fatigue

Scientific 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, Helen M. Genova, Bing Yao, Nancy Chiaravalloti, Cristina A. F. Román, Brian M. Sandroff, John DeLuca   +6 more
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Identification of single-dose, dual-echo based CBV threshold for fractional tumor burden mapping in recurrent glioblastoma

Frontiers 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, Ashley M. Stokes, Renee Chao, Leland S. Hu, Lea Alhilali, John P. Karis, Laura C. Bell, C. Chad Quarles   +7 more
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CannaCount: an improved metric for quantifying estimates of maximum possible cannabinoid exposure

Scientific 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, Kelly A. Sagar, M. Kathryn Dahlgren, Deniz Kosereisoglu, Celine El-Abboud, Rosemary T. Smith, Staci A. Gruber   +6 more
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Evaluating blood–brain barrier permeability in a rat model of type 2 diabetes

Journal 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, Christopher M. Lawson, Kilian F. G. Rentrup, Praveen Kulkarni, Craig F. Ferris   +4 more
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Evaluation of Amyotrophic Lateral Sclerosis-Induced Muscle Degeneration Using Magnetic Resonance-Based Relaxivity Contrast Imaging (RCI)

Tomography, 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, Laura C. Bell, Natenael Semmineh, Ashley M. Stokes, Jeremy M. Shefner, Robert Bowser, Shafeeq Ladha, C. Chad Quarles   +7 more
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An in-vivo study of BOLD laminar responses as a function of echo time and static magnetic field strength

Scientific 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, José P. Marques, Lauren J. Bains, David G. Norris   +3 more
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Using functional connectivity changes associated with cognitive fatigue to delineate a fatigue network

Scientific Reports, 2020
Cognitive fatigue, or fatigue related to mental work, is a common experience. A growing body of work using functional neuroimaging has identified several regions that appear to be related to cognitive fatigue and that potentially comprise a “fatigue ...
G. R. Wylie, B. Yao, H. M. Genova, M. H. Chen, J. DeLuca   +4 more
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Clinical and cognitive improvement following full-spectrum, high-cannabidiol treatment for anxiety: open-label data from a two-stage, phase 2 clinical trial

Communications Medicine, 2022
Dahlgren et al. conduct an open-label phase 2 trial of a full-spectrum, high-cannabidiol product in 14 patients with moderate-to-severe anxiety. Anxiety is significantly reduced and the drug well-tolerated with no serious adverse events.
Mary Kathryn Dahlgren, Ashley M. Lambros, Rosemary T. Smith, Kelly A. Sagar, Celine El-Abboud, Staci A. Gruber   +5 more
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Functionally distinct contributions of the anterior and posterior putamen during sublexical and lexical reading

Frontiers in Human Neuroscience, 2013
Previous studies have investigated orthographic-to-phonological mapping during reading by comparing brain activation for (1) reading words to object naming, or (2) reading pseudowords (e.g. phume) to words (e.g. plume).
Marion eOberhuber, ‘Ōiwi eParker Jones, ‘Ōiwi eParker Jones, Thomas M H eHope, Susan ePrejawa, Mohamed L Seghier, David W Green, Cathy J Price   +7 more
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