Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Karen J. Mullinger"'
Autor:
Sebastian C. Coleman, Zelekha A. Seedat, Anna C. Whittaker, Agatha Lenartowicz, Karen J. Mullinger
Publikováno v:
NeuroImage, Vol 265, Iss , Pp 119801- (2023)
Post-task responses (PTRs) are transitionary responses occurring for several seconds between the end of a stimulus/task and a period of rest. The most well-studied of these are beta band (13 – 30 Hz) PTRs in motor networks following movement, often
Externí odkaz:
https://doaj.org/article/780f4dd9a95445ca88a621f3b625dbb3
Publikováno v:
NeuroImage, Vol 253, Iss , Pp 119081- (2022)
Ipsilateral sensorimotor (iSM1) cortex negative BOLD responses (NBR) are observed to unilateral tasks and are thought to reflect a functionally relevant component of sensorimotor inhibition. Evidence suggests that sensorimotor inhibitory mechanisms d
Externí odkaz:
https://doaj.org/article/3d16ab6939134facac44ff61006815a3
Publikováno v:
Brain and Behavior, Vol 11, Iss 7, Pp n/a-n/a (2021)
Abstract Introduction Resting cerebral blood flow (CBF) and perfusion measures have been used to determine brain health. Studies showing variation in resting CBF with age and fitness level using different imaging approaches have produced mixed findin
Externí odkaz:
https://doaj.org/article/e1a271f705d04fa8adcee2ebce24989c
Autor:
Muhammad E. H. Chowdhury, Amith Khandakar, Karen J. Mullinger, Belayat Hossain, Nasser Al-Emadi, Andre Antunes, Richard Bowtell
Publikováno v:
IEEE Access, Vol 7, Pp 17882-17895 (2019)
The utility of EEG-fMRI is limited by the large artefact voltages produced in EEG recordings made during concurrent fMRI. Novel approaches for reducing the magnitude and variability of the artefacts are, therefore, required. One such approach involve
Externí odkaz:
https://doaj.org/article/f7b014262b1d4a64ad1cb790f6f53f44
Autor:
Claire V. Burley, Susan T. Francis, Kate N. Thomas, Anna C. Whittaker, Samuel J. E. Lucas, Karen J. Mullinger
Publikováno v:
Frontiers in Physiology, Vol 12 (2021)
Cerebrovascular reactivity (CVR) is used as an outcome measure of brain health. Traditionally, lower CVR is associated with ageing, poor fitness and brain-related conditions (e.g. stroke, dementia). Indeed, CVR is suggested as a biomarker for disease
Externí odkaz:
https://doaj.org/article/43b182a74940423d8afb8cd7a95f97af
Autor:
Zelekha A. Seedat, Andrew J. Quinn, Diego Vidaurre, Lucrezia Liuzzi, Lauren E. Gascoyne, Benjamin A.E. Hunt, George C. O’Neill, Daisie O. Pakenham, Karen J. Mullinger, Peter G. Morris, Mark W. Woolrich, Matthew J. Brookes
Publikováno v:
NeuroImage, Vol 209, Iss , Pp 116537- (2020)
Neural oscillations dominate electrophysiological measures of macroscopic brain activity and fluctuations in these rhythms offer an insightful window on cortical excitation, inhibition, and connectivity. However, in recent years the ‘classical’ p
Externí odkaz:
https://doaj.org/article/e20846295ce8410daf728d0f63caf58c
Autor:
Daisie O. Pakenham, Andrew J. Quinn, Adam Fry, Susan T. Francis, Mark W. Woolrich, Matthew J. Brookes, Karen J. Mullinger
Publikováno v:
NeuroImage, Vol 206, Iss , Pp 116288- (2020)
Modulation of beta-band neural oscillations during and following movement is a robust marker of brain function. In particular, the post-movement beta rebound (PMBR), which occurs on movement cessation, has been related to inhibition and connectivity
Externí odkaz:
https://doaj.org/article/b987c8690df74114823b8cb03db3323c
Autor:
Lauren E. Gascoyne, Karen J. Mullinger, Siân E. Robson, Jyothika Kumar, George C. O'Neill, Lena Palaniyappan, Peter G. Morris, Elizabeth B. Liddle, Matthew J. Brookes, Peter F. Liddle
Publikováno v:
NeuroImage: Clinical, Vol 20, Iss , Pp 228-235 (2018)
The healthy brain is able to maintain a stable balance between bottom-up sensory processing and top-down cognitive control. The neurotransmitter acetylcholine plays a substantial role in this. Disruption of this balance could contribute to symptoms o
Externí odkaz:
https://doaj.org/article/3c98b10194fa439896d2c1de760d7e30
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-18 (2017)
Abstract Reward learning depends on accurate reward associations with potential choices. These associations can be attained with reinforcement learning mechanisms using a reward prediction error (RPE) signal (the difference between actual and expecte
Externí odkaz:
https://doaj.org/article/4fa880931362431c9df34eb547d1c2dd
Autor:
Muhammad E. H. Chowdhury, Amith Khandakar, Karen J. Mullinger, Nasser Al-Emadi, Richard Bowtell
Publikováno v:
Frontiers in Neuroscience, Vol 13 (2019)
Electroencephalography (EEG) data recorded during simultaneous EEG-fMRI experiments are contaminated by large gradient artifacts (GA). The amplitude of the GA depends on the area of the wire loops formed by the EEG leads, as well as on the rate of sw
Externí odkaz:
https://doaj.org/article/7e9c6102f8a645d49adffe928b4fb66a