Results 131 to 140 of about 218,617 (370)

Sleep Alters the Velocity of Physiological Brain Pulsations in Humans

Advanced Science, EarlyView.
Sleep alters I/CSF oscillatory flow, driven by increased respiratory (29%) and vasomotor pulsation (21%) velocities, while cardiovascular pulsations decreased by (22%). Velocity is quantified using optical flow analysis of MREG data. Spectral power increases alongside these pulsations (spatial correlation, r = 0.35 and r = 0.39, respectively ...
Ahmed Elabasy, Heta Helakari, Tommi Väyrynen, Zalán Rajna, Niko Huotari, Lauri Raitamaa, Ville Isokoski, Matti Järvelä, Mika Kaakinen, Johanna Piispala, Mika Kallio, Vesa Korhonen, Tapio Seppänen, Vesa Kiviniemi   +13 more
wiley   +1 more source

Ecologically‐Valid Emotion Signatures Enhance Mood Disorder Diagnostics

Advanced Science, EarlyView.
This study identifies ecologically‐valid Divergent Emotional Functional Networks (DEFN), derived from dynamic functional connectivity during naturalistic movie watching. The DEFN reliably enhances diagnostic accuracy for mood disorders, including major depressive and bipolar disorders, demonstrating strong reproducibility across demographic factors and
Shuyue Xu, Linling Li, Ting Luo, Gan Huang, Li Zhang, Benjamin Becker, Zhen Liang   +6 more
wiley   +1 more source

A MEG Study on the Processing of Time and Quantity: Parietal Overlap but Functional Divergence

Frontiers in Psychology, 2019
A common magnitude system for the processing of time and numerosity, supported by areas in the posterior parietal cortex, has been proposed by some authors. The present study aims to investigate possible intersections between the neural processing of non-
Elena Salillas, Milena Korostenskaja, Milena Korostenskaja, Milena Korostenskaja, Tara Kleineschay, Tara Kleineschay, Shivani Mehta, Alexandra Vega, Eduardo Martinez Castillo, Eduardo Martinez Castillo   +9 more
doaj   +1 more source

Hyperviscous Diabetic Bone Marrow Niche Impairs BMSCs Osteogenesis via TRPV2‐Mediated Cytoskeletal‐Nuclear Mechanotransduction

Advanced Science, EarlyView.
Diabetic bone marrow exhibits pathological ECM hyperviscosity that activates TRPV2‐mediated Ca2⁺ influx, leading to perinuclear F‐actin disassembly, nuclear deformation, and chromatin condensation. This cytoskeletal‐nuclear decoupling suppresses osteogenic differentiation of BMSCs.
Yao Wen, Xinhui Zheng, Jieliu Li, Minyu He, Dongqi Fan, Xingyu Zhu, Qiming Zhai, Liangjing Xin, Tao Chen   +8 more
wiley   +1 more source

Perisylvian white matter connectivity in the human right hemisphere

BMC Neuroscience, 2009
Background By using diffusion tensor magnetic resonance imaging (DTI) and subsequent tractography, a perisylvian language network in the human left hemisphere recently has been identified connecting Brocas's and Wernicke's areas directly (arcuate ...
Tatagiba Marcos, Heckl Stefan, Saur Ralf, Erb Michael, Kunath Frank, Gharabaghi Alireza, Grodd Wolfgang, Karnath Hans-Otto   +7 more
doaj   +1 more source

Interior maps in posterior pareital cortex [PDF]

, 2002
The posterior parietal cortex (PPC), historically believed to be a sensory structure, is now viewed as an area important for sensory-motor integration.
Andersen, Richard A., Bueno, Christopher A.   +1 more
core   +1 more source

Left parietal tACS at alpha frequency induces a shift of visuospatial attention

, 2019
Background Voluntary shifts of visuospatial attention are associated with a lateralization of parieto-occipital alpha power (7-13Hz), i.e. higher power in the hemisphere ipsilateral and lower power contralateral to the locus of attention.
De Graaf, T., Duecker, F., Kemmerer, S., Sack, A., Schuhmann, T., Ten Oever, S., Weerd, P.   +6 more
core   +1 more source

Prismatic adaptation modulates oscillatory EEG correlates of motor preparation but not visual attention in healthy participants [PDF]

, 2017
Prismatic adaption (PA) has been proposed as a tool to induce neural plasticity and is used to help neglect rehabilitation. It leads to a recalibration of visuo-motor coordination during pointing as well as to after-effects on a number of sensorimotor ...
Bracco, Martina, Oliveri, Massimiliano, Thut, Gregor, Veniero, Domenica   +3 more
core   +4 more sources

Diffusion‐MRI‐Based Estimation of Cortical Architecture via Machine Learning (DECAM) in Primate Brains

Advanced Science, EarlyView.
We present Diffusion‐MRI‐based Estimation of Cortical Architecture via Machine Learning (DECAM), a deep‐learning framework for estimating primate brain cortical architecture optimized with best response constraint and cortical label vectors. Trained using macaque brain high‐resolution multi‐shell dMRI and histology data, DECAM generates high‐fidelity ...
Tianjia Zhu, Minhui Ouyang, Shufang Tan, Jianlin Guo, Ziqin Zhang, Xuan Liu, Risheng Liu, Hao Huang   +7 more
wiley   +1 more source

MEG reveals a fast pathway from somatosensory cortex to occipital areas via posterior parietal cortex in a blind subject

Frontiers in Human Neuroscience, 2013
Cross-modal activity in visual cortex of blind subjects has been reported during performance of variety of non-visual tasks. A key unanswered question is through which pathways non-visual inputs are funneled to the visual cortex. Here we used tomographic
Andreas A Ioannides, Lichan eLiu, Vahe ePoghosyan, George A Saridis, Albert eGjedde, Maurice ePtito, Maurice ePtito, Ron eKupers, Ron eKupers   +8 more
doaj   +1 more source