Results 91 to 100 of about 136,889 (206)

Uncovering the impact of the cardiovascular system on cerebrovascular health using MRI

Experimental Physiology, EarlyView.
Abstract Human cerebrovasculature is finely tuned to enable local changes in blood flow to meet the brain's demands, whilst protecting the brain from systemic changes in blood pressure, both acutely during a heartbeat and chronically over time. This review summarises cerebrovascular structure and function, their role in disease and neurodegeneration ...
Ian D. Driver, Kevin Murphy
wiley   +1 more source

Magnetoencephalography in Preoperative Epileptic Foci Localization: Enlightenment from Cognitive Studies

Frontiers in Computational Neuroscience, 2017
Over 30% epileptic patients are refractory to medication, who are amenable to neurosurgical treatment. Non-invasive brain imaging technologies including video-electroencephalogram (EEG), magnetic resonance imaging (MRI), and magnetoencephalography (MEG ...
Qian Wang, Qian Wang, Pengfei Teng, Guoming Luan, Guoming Luan, Guoming Luan   +5 more
doaj   +1 more source

Lateralization of delta band power in magnetoencephalography (MEG) in patients with unilateral focal epilepsy and its relation to verbal fluency. [PDF]

Brain Behav, 2023
Süß AM, Hug M, Conradi N, Kienitz R, Rosenow F, Rampp S, Merkel N.   +6 more
europepmc   +1 more source

Modulation of cerebral blood flow and cognition by hyperthermia and hypoxia: An electroencephalographic event‐related potentials perspective

Experimental Physiology, EarlyView.
Abstract Cerebral blood flow (CBF) is essential for sustaining neuronal metabolism and cognitive performance; however, the precise relationship between perfusion and cognition remains unclear. Although ageing and disease are associated with progressive declines in CBF and cognitive impairment, the acute effects of altered CBF under environmental ...
Hiroki Nakata, Shigehiko Ogoh, Manabu Shibasaki   +2 more
wiley   +1 more source

A magnetoencefalografia. Aplicações Clínicas.

Acta Médica Portuguesa, 2004
Magnetoencephalography (MEG) is a technique that enables the measurement of the magnetic fields produced by the brain. It is a noninvasive method that allows, similarly to electroencephalography (EEG), to follow the evolution of electrophysiological ...
Maria João Gomes Trindade
doaj   +1 more source

Distinctive neurophysiological correlates of sound onset and offset perception in humans

The Journal of Physiology, EarlyView.
Abstract figure legend Electroencephalography (EEG) recordings were obtained from participants listening to successive pairs of 1‐2 s noises in a silent background (Study 1) or successive pairs 1‐2 s silent gaps in a noise background (Study 2). Participants heard the same stimuli in the context of either a duration discrimination task (identifying ...
Fatima Ali, Gabriela Bury, Adèle Simon, Jennifer F. Linden   +3 more
wiley   +1 more source

Magnetoencephalography (MEG) based non-invasive Chinese speech decoding

Journal of Neural Engineering
Abstract Objective. As an emerging paradigm of brain–computer interfaces (BCIs), speech BCI has the potential to directly reflect auditory perception and thoughts, offering a promising communication alternative for patients with aphasia. Chinese is one of the most widely spoken languages in the
Zhihong Jia, Hongbin Wang, Yuanzhong Shen, Feng Hu, Jiayu An, Kai Shu, Dongrui Wu   +6 more
openaire   +4 more sources

Mental Scene and Memory Construction and the Hippocampus

Hippocampus, Volume 36, Issue 6, November 2026.
ABSTRACT A neurocomputational theory of scene and memory construction during memory recall, prospective thinking, and autobiographical memory is described. The theory describes the nature of the representation of scenes using spatial view cells in a continuous attractor network in the medial parahippocampal cortex, and how the location in the scene ...
Edmund T. Rolls
wiley   +1 more source

Using optically pumped magnetometers to replicate task-related responses in next generation magnetoencephalography

Scientific Reports
Optically pumped magnetometers (OPMs) offer a new wearable means to measure magnetoencephalography (MEG) signals, with many advantages compared to conventional systems.
Kristina Safar, Marlee M. Vandewouw, Julie Sato, Jasen Devasagayam, Ryan M. Hill, Molly Rea, Matthew J. Brookes, Margot J. Taylor   +7 more
doaj   +1 more source

Automatic morpheme identification across development: Magnetoencephalography (MEG) evidence from fast periodic visual stimulation. [PDF]

Front Psychol, 2022
Pescuma VN, Ktori M, Beyersmann E, Sowman PF, Castles A, Crepaldi D.   +5 more
europepmc   +1 more source