Results 1 to 10 of about 881,689 (250)

Intrinsic signal changes accompanying sensory stimulation: functional brain mapping with magnetic resonance imaging. [PDF]

Proceedings of the National Academy of Sciences of the United States of America, 1992
We report that visual stimulation produces an easily detectable (5-20%) transient increase in the intensity of water proton magnetic resonance signals in human primary visual cortex in gradient echo images at 4-T magnetic-field strength.
Satoshi Ogawa, David W. Tank, Ravi S. Menon, Jutta Ellermann, Seong‐Gi Kim, Hellmut Merkle, Kâmil Uğurbil   +6 more
openalex   +2 more sources

Functional magnetic resonance imaging

Scholarpedia, 2004
1. An Introduction to fMRI 2. MRI Scanners 3. Basic Principles of MR Signal Generation 4. Basic Principles of MR Image Formation 5. MR Contrast Mechanisms and Acquisition Techniques 6. From Neuronal to Hemodynamic Activity 7.
S. Ogawa, Yul-Wan Sung
semanticscholar   +2 more sources

Functional Magnetic Resonance Imaging Methods [PDF]

Neuropsychology Review, 2015
Since its inception in 1992, Functional Magnetic Resonance Imaging (fMRI) has become an indispensible tool for studying cognition in both the healthy and dysfunctional brain. FMRI monitors changes in the oxygenation of brain tissue resulting from altered metabolism consequent to a task-based evoked neural response or from spontaneous fluctuations in ...
Jingyuan E. Chen, G. Glover
semanticscholar   +4 more sources

Evidence from functional magnetic resonance imaging of crossmodal binding in the human heteromodal cortex [PDF]

Current Biology, 2000
Gemma A. Calvert, Ruth Campbell, Michael Brammer   +2 more
openalex   +2 more sources

Polypyrrole-Coated Magnetite Vortex Nanoring for Hyperthermia-Boosted Photothermal/Magnetothermal Tumor Ablation Under Photoacoustic/Magnetic Resonance Guidance

Frontiers in Bioengineering and Biotechnology, 2021
Photothermal/magnetothermal-based hyperthermia cancer therapy techniques have been widely investigated, and associated nanotechnology-assisted treatments have shown promising clinical potentials.
Jianfeng Bao, Shuangshuang Guo, Xiangyang Zu, Yuchuan Zhuang, Dandan Fan, Yong Zhang, Yupeng Shi, Zhenyu Ji, Jingliang Cheng, Xin Pang   +9 more
doaj   +1 more source

First evidence of long-term effects of transcranial pulse stimulation (TPS) on the human brain

Journal of Translational Medicine, 2022
Background With the high spatial resolution and the potential to reach deep brain structures, ultrasound-based brain stimulation techniques offer new opportunities to non-invasively treat neurological and psychiatric disorders.
Eva Matt, Lisa Kaindl, Saskia Tenk, Anicca Egger, Teodora Kolarova, Nejla Karahasanović, Ahmad Amini, Andreas Arslan, Kardelen Sariçiçek, Alexandra Weber, Roland Beisteiner   +10 more
doaj   +1 more source

Functional magnetic resonance imaging in migraine: A systematic review

Cephalalgia, 2023
Background Migraine is a highly prevalent primary headache disorder. Despite a high burden of disease, key disease mechanisms are not entirely understood.
Severin Schramm, C. Börner, Miriam Reichert, T. Baum, C. Zimmer, F. Heinen, M. Bonfert, N. Sollmann   +7 more
semanticscholar   +1 more source

Structural and Functional Brain Abnormalities in Internet Gaming Disorder and Attention-Deficit/Hyperactivity Disorder: A Comparative Meta-Analysis

Frontiers in Psychiatry, 2021
Background: Patients with Internet gaming disorder (IGD) and attention-deficit/hyperactivity disorder (ADHD) have high comorbidity but it is still unknown whether these disorders have shared and distinctive neuroimage alterations.Objective: The aim of ...
Xinyu Gao, Xinyu Gao, Xinyu Gao, Mengzhe Zhang, Mengzhe Zhang, Mengzhe Zhang, Zhengui Yang, Zhengui Yang, Zhengui Yang, Mengmeng Wen, Mengmeng Wen, Mengmeng Wen, Huiyu Huang, Huiyu Huang, Huiyu Huang, Ruiping Zheng, Ruiping Zheng, Ruiping Zheng, Weijian Wang, Weijian Wang, Weijian Wang, Yarui Wei, Yarui Wei, Yarui Wei, Jingliang Cheng, Jingliang Cheng, Jingliang Cheng, Shaoqiang Han, Shaoqiang Han, Shaoqiang Han, Yong Zhang, Yong Zhang, Yong Zhang   +32 more
doaj   +1 more source

Short periods of bipolar anodal TDCS induce no instantaneous dose-dependent increase in cerebral blood flow in the targeted human motor cortex

Scientific Reports, 2022
Anodal transcranial direct current stimulation (aTDCS) of primary motor hand area (M1-HAND) can enhance corticomotor excitability, but it is still unknown which current intensity produces the strongest effect on intrinsic neural firing rates and synaptic
Marie Louise Liu, Anke Ninija Karabanov, Marjolein Piek, Esben Thade Petersen, Axel Thielscher, Hartwig Roman Siebner   +5 more
doaj   +1 more source

Reduced GABA concentration in patients with white matter hyperintensities

Frontiers in Neuroscience, 2023
To investigate potential alterations of white matter hyperintensities (WMHs) on J-edited MR spectroscopy (MRS) measures of the primary inhibitory neurotransmitter γ-aminobutyric acid (GABA).
Xin Wang, Caihong Wang, Peifang Miao, Ying Wei, Liangjie Lin, Zhen Li, Yong Zhang, Jingliang Cheng, Cuiping Ren   +8 more
doaj   +1 more source