Results 131 to 140 of about 229,155 (322)

Regional-based static and dynamic alterations in Alzheimer disease: a longitudinal study

Arquivos de Neuro-Psiquiatria
Background Alzheimer disease (AD) leads to cognitive decline and alters functional connectivity (FC) in key brain regions. Resting-state functional magnetic resonance imaging (rs-fMRI) assesses these changes using static-FC for overall ...
Kuppe Channappa Usha, Honnenahally Ningappa Suma, Abhishek Appaji   +2 more
doaj   +1 more source

Task-Evoked Functional Activation and Coupling With CSF Flow Detected in the Human Brain With Ultrashort Echo Time fMRI at 7 T. [PDF]

NMR Biomed
Ultrashort and zero echo time (UTE and ZTE) MRI techniques generate functional contrast through inflow effects, making them suitable for studying cerebral blood flow and cerebrospinal fluid (CSF) dynamics. In a 7‐T study of 13 participants performing a visual task, we demonstrate that UTE produced robust, reproducible activations with group‐level ...
Ponticorvo S, Paasonen E, Filip P, Rothman DL, Valjakka JS, Gröhn O, Michaeli S, Mangia S.   +7 more
europepmc   +2 more sources

Investigating human audio-visual object perception with a combination of hypothesis-generating and hypothesis-testing fMRI analysis tools [PDF]

, 2011
Primate multisensory object perception involves distributed brain regions. To investigate the network character of these regions of the human brain, we applied data-driven group spatial independent component analysis (ICA) to a functional magnetic ...
van den Bosch, Jasper J F, Wolf Singer, van den Bosch, J.J.F., Kohler, A., Kaiser, J., Kaiser, Jochen, Ven, Vincent van de, Marcus J. Naumer, Bosch, Jasper J. F. van den, van de Ven, Vincent, Lars Muckli, Muckli, L., Kohler, Axel, Singer, Wolf, Axel Kohler, Jochen Kaiser, Naumer, M.J., van den Bosch, J., Muckli, Lars, Wibral, M., Wibral, Michael, Michael Wibral, Jasper J. F. van den Bosch, Naumer, Marcus Johannes, Vincent van de Ven, Naumer, Marcus J, van de Ven, V., Singer, W.   +27 more
core   +1 more source

Brain reward function in young people with cannabis use disorder: A functional magnetic resonance imaging study

Addiction, EarlyView.
Abstract Background and Aims Cannabis use disorder (CUD) affects ~50 million people globally. Neuroscientific theories suggest that a blunted neural response to non‐drug rewards is a hallmark of substance use disorders; however, this remains untested in CUD. The current study tested whether brain reward system responses to the anticipation and feedback
Martine Skumlien, Lisa‐Marie Greenwood, Arush Honnedevasthana Arun, Isabella Goodwin, Anastasia Paloubis, Tribikram Thapa Rana, Marianna Quinones Valera, Eugene McTavish, Gabrielle Abbott, Suraya Dunsford, Antonio Verdejo‐Garcia, Jessica Ramamurthy, Mark M. Schira, Nadia Solowij, Chao Suo, Valentina Lorenzetti   +15 more
wiley   +1 more source

Phase coupling between eye and brain pulsations is bidirectional and modulated by the parasympathetic system – An fMREye study

Acta Ophthalmologica, EarlyView.
Abstract Purpose Physiological pulsations driven by cardiac, respiratory, and vasomotor activity are essential for solute transport within perivascular and perineural cerebrospinal fluid (CSF) pathways that support brain and eye clearance systems. Previous studies have shown that parasympathetic blockade significantly reduces ocular pulsation power and
Ebrahimi Seyed‐Mohsen, Väyrynen Tommi, Huotari Niko, Saarela Ville, Honkamo Marja, Helakari Heta, Järvelä Matti, Korhonen Vesa, Raitamaa Lauri, Kiviniemi Vesa   +9 more
wiley   +1 more source

Advances of Studies on the Underlying Mechanism of Acupuncture Efficacies by Using Functional Magnetic Resonance Imaging

针刺研究, 2009
In the present paper the authors review recent progress in the study on the underlying mechanism of acupuncture effects by using functional magnetic resonance imaging(fMRI) from 1) fMRI imaging technology,2) the meridian-collateral system of Chinese ...
REN Xiu-jun, WANG Bao-guo1
doaj  

Safety pharmacology of acute mescaline administration in healthy participants

British Journal of Clinical Pharmacology, EarlyView.
Aims Psychedelics, including mescaline, may serve as novel treatments for depression and anxiety. However, data is scarce on the safety of mescaline. Methods The present pooled analysis included two double‐blind, randomized, placebo‐controlled studies with a total of 48 participants and 96 mescaline administrations. Single oral‐dose administrations (n =
Aaron Klaiber, Mélusine Humbert‐Droz, Laura Ley, Yasmin Schmid, Matthias E. Liechti   +4 more
wiley   +1 more source

Rest-fMRI—A Potential Substitute for Task-fMRI?

Indian Journal of Radiology and Imaging
Objective The aim of this study was to assess the reliability of resting-state functional magnetic resonance imaging (rest-fMRI) in mapping language areas for preoperative planning, versus standard task-based techniques, which are at times ...
Santosh S. Gupta, Rithika Sriram, Smruti Mulani   +2 more
doaj   +1 more source

Neuroanatomical and neurofunctional brain basis of cognitive deficits in adolescent subjects who were born preterm. Structural and functional magnetic resonance study [PDF]

, 2006
[eng] The general aim of this thesis is to study the cerebral basis of cognitive disturbances in adolescents with history of premature birth (PB). As previous manual volumetric investigations in PB samples, we quantitatively demonstrated the presence of ...
Giménez Navarro, Mónica
core  

In silico prediction of novel effective combinational treatment of chronic pain in individual patients: A joint white paper of the H2020 QSPainRelief consortium

British Journal of Pharmacology, EarlyView.
Abstract Opioids are prescribed widely for chronic pain despite well‐recognised risks and variable long‐term benefit, reflecting the lack of effective alternatives for many patients. Combination therapies offer a promising strategy to enhance efficacy whilst reducing side effects.
André Mouraux, Solenn Gousset, Beltrán Alvarez, Monica Baiula, Wouter Bakker, Andrea Bedini, Monir Bertayli, Divakar Budda, Robert Carr, Elisabetta Cuna, Óscar Díaz, Nina Donner, Jesús Giraldo, Geert‐Jan Groeneveld, Berfin Gülave, David Guydan, Hemme Hijma, Rafael Maldonado, Pedro Renault, Carlos Rinaudo, Jeroen Elaissaiss‐Schaap, Athan Spiros, Sara Stoeber, Petri Takkala, Daan van Valkengoed, Coen van Hasselt, Elizabeth (Liesbeth) CM de Lange   +26 more
wiley   +1 more source