Results 111 to 120 of about 1,638,797 (414)
Cortex Neural Network: learning with Neural Network groups [PDF]
arXiv, 2018 Neural Network has been successfully applied to many real-world problems, such as image recognition and machine translation. However, for the current architecture of neural networks, it is hard to perform complex cognitive tasks, for example, to process the image and audio inputs together. Cortex, as an important architecture in the brain, is important
arxiv
Cell type specificity of neurovascular coupling in cerebral cortex
eLife, 2016 Identification of the cellular players and molecular messengers that communicate neuronal activity to the vasculature driving cerebral hemodynamics is important for (1) the basic understanding of cerebrovascular regulation and (2) interpretation of ...
Hana Uhlířová +29 more
semanticscholar +1 more source
Potential use of oxygen as a metabolic biosensor in combination with T2*-weighted MRI to define the ischemic penumbra [PDF]
, 2008 We describe a novel magnetic resonance imaging technique for detecting metabolism indirectly through changes in oxyhemoglobin:deoxyhemoglobin ratios and T2* signal change during ‘oxygen challenge’ (OC, 5 mins 100% O2). During OC, T2* increase reflects O2
Barrie Condon +14 more
core +1 more source
Self‐organized Criticality in Neuromorphic Nanowire Networks With Tunable and Local Dynamics
Advanced Functional Materials, EarlyView.Memristive nanowire networks (NWNs) are shown to be electrically tunable to a critical state where specific local dynamics evaluated by multiterminal characterization are exploited as feature selection in nonlinear transformation (NLT) tasks.
Fabio Michieletti +3 more
wiley +1 more source
Biomaterial-engineering and neurobiological approaches for regenerating the injured cerebral cortex
Regenerative Therapy, 2016 The cerebral cortex is responsible for higher functions of the central nervous system (CNS), such as movement, sensation, and cognition. When the cerebral cortex is severely injured, these functions are irreversibly impaired.
Itsuki Ajioka
doaj +1 more source
PLoS ONE, 2021 The photochemically-induced thrombosis (photothrombosis) method can create focal cerebral infarcts anywhere in the relatively superficial layers of the cerebrum; it is easy to implement and minimally invasive.
Yuya Ota +10 more
doaj +1 more source
Frequency-specific segregation and integration of human cerebral cortex: an intrinsic functional atlas [PDF]
arXiv, 2021 The frequency-specific coupling mechanism of the functional human brain networks underpins its complex cognitive and behavioral functions. Nevertheless, it is not well unveiled what are the frequency-specific subdivisions and network topologies of the human brain.
arxiv
The American Journal of Psychology, 1950 Illustrated lining-papers. ; Bibliography: p. 135-150. ; Mode of access: Internet.
M. B., Gerhardt von Bonin
openaire +2 more sources
Regional differences in the coupling between resting cerebral blood flow and metabolism may indicate action preparedness as a default state. [PDF]
, 2008 Although most functional neuroimaging studies examine task effects, interest intensifies in the "default" resting brain. Resting conditions show consistent regional activity, yet oxygen extraction fraction constancy across regions.
Alavi, Abass +5 more
core +2 more sources
Advanced Healthcare Materials, EarlyView.Organ‐on‐Chip (OoC) technology enables the precise modeling of the blood‐brain barrier (BBB). This study presents a microfluidic device that mimics brain microvessels, integrating co‐culture with pericytes and astrocytes under pulsatile flow. Results show that perivascular cells modulate endothelial morphology, promoting lumen formation and barrier ...
Vita Guarino +9 more
wiley +1 more source