Results 61 to 70 of about 972,165 (184)

Neurovascular coupling: insights from physiology, neuropharmacology and electrical microstimulation

open access: yes, 2009
In my talk I shall describe our current understanding of the neurophysiological and hemodynamic signals, and of the functional neurovascular coupling in the anesthetized and alert behaving monkey.
Logothetis, N.
core   +1 more source

Control of the neurovascular coupling by nitric oxide-dependent regulation of astrocytic Ca2+ signaling

open access: yesFrontiers in Cellular Neuroscience, 2015
Neuronal activity must be tightly coordinated with blood flow to keep proper brain function, which is achieved by a mechanism known as neurovascular coupling. Then, an increase in synaptic activity leads to a dilation of local parenchymal arterioles that
Manuel Francisco Muñoz   +2 more
doaj   +1 more source

Cortical specificity in neurovascular coupling

open access: yesJournal of Neurophysiology, 2015
Despite mounting contrary evidence, the metabolic hypothesis is viewed as the predominant theory underlying neurovascular coupling, or the link between neural activity and cerebral blood flow. In a recent study, Huo et al. (Huo BX, Smith JB, Drew PJ.
openaire   +4 more sources

Neurovascular coupling during deep brain stimulation

open access: yesBrain Stimulation, 2020
Background: Deep brain stimulation (DBS) is an effective treatment for movement disorders, yet its mechanisms of action remain unclear. One method used to study its circuit-wide neuromodulatory effects is functional magnetic resonance imaging (fMRI ...
M. Sohail Noor   +3 more
doaj   +1 more source

Altered neurovascular coupling in neuromyelitis optica [PDF]

open access: yesHuman Brain Mapping, 2018
AbstractNeurovascular coupling reflects the close relationship between neuronal activity and cerebral blood flow (CBF), providing a new mechanistic insight into health and disease. Neuromyelitis optica (NMO) is an autoimmune inflammatory demyelinating disease of the central nervous system and shows cognitive decline‐related brain gray matter ...
Xi Guo   +11 more
openaire   +2 more sources

Anesthesia and the Quantitative Evaluation of Neurovascular Coupling [PDF]

open access: yesJournal of Cerebral Blood Flow & Metabolism, 2012
Anesthesia has broad actions that include changing neuronal excitability, vascular reactivity, and other baseline physiologies and eventually modifies the neurovascular coupling relationship. Here, we review the effects of anesthesia on the spatial propagation, temporal dynamics, and quantitative relationship between the neural and vascular responses ...
Kazuto, Masamoto, Iwao, Kanno
openaire   +2 more sources

Is There a Persistent Dysfunction of Neurovascular Coupling in Migraine? [PDF]

open access: yesBioMed Research International, 2015
Changes in cerebral blood flow are one of the main features of migraine attack and have inspired the vascular theory of migraine. This traditional view has been reshaped with recent experimental data, which gave rise to the neural theory of migraine. In this review, we speculate that there might be an important link between the two theories, that is ...
Andrej Fabjan   +2 more
openaire   +2 more sources

Age-Dependent Impairment of Neurovascular and Neurometabolic Coupling in the Hippocampus

open access: yesFrontiers in Physiology, 2018
Neurovascular and neurometabolic coupling are critical and complex processes underlying brain function. Perturbations in the regulation of these processes are, likely, early dysfunctional alterations in pathological brain aging and age-related ...
Cátia F. Lourenço   +6 more
doaj   +1 more source

Image_1_Altered Neurovascular Coupling in Unilateral Pulsatile Tinnitus.JPEG

open access: yes, 2022
ObjectiveAltered cerebral blood flow (CBF) and regional homogeneity (ReHo) have been reported in pulsatile tinnitus (PT) patients. We aimed to explore regional neurovascular coupling changes in PT patients.Materials and MethodsTwenty-four right PT ...
Xiaoyu Qiu (1939150)   +11 more
core   +1 more source

The effect of different anesthetics on neurovascular coupling [PDF]

open access: yesNeuroImage, 2010
To date, the majority of neurovascular coupling studies focused on the thalamic afferents' activity in layer IV and the corresponding large spiking activity as responsible for functional hyperemia. This paper highlights the role of the secondary and late cortico-cortical transmission in neurovascular coupling. Simultaneous scalp electroencephalography (
Maria Angela Franceschini   +6 more
openaire   +2 more sources

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