Global signal modulation of single-trial fMRI response variability: effect on positive vs negative BOLD response relationship

Mayhew, Stephen D.; Mullinger, Karen J.; Ostwald, D.; Porcaro, C.; Bowtell, Richard W.; Bagshaw, Andrew P.; Francis, Susan T.

doi:10.1016/j.neuroimage.2016.02.077

All Outputs (6)

Histological basis of laminar MRI patterns in high resolution images of fixed human auditory cortex (2016)
Journal Article
Wallace, M. N., Cronin, M. J., Bowtell, R. W., Scott, I., Palmer, A. R., & Gowland, P. A. (2016). Histological basis of laminar MRI patterns in high resolution images of fixed human auditory cortex. Frontiers in Neuroscience, 10, Article 455. https://doi.org/10.3389/fnins.2016.00455

Functional magnetic resonance imaging (fMRI) studies of the auditory region of the temporal lobe would benefit from the availability of image contrast that allowed direct identification of the primary auditory cortex, as this region cannot be accurat... Read More about Histological basis of laminar MRI patterns in high resolution images of fixed human auditory cortex.

On the potential of a new generation of magnetometers for MEG: A beamformer simulation study (2016)
Journal Article
Boto, E., Bowtell, R. W., Kruger, P., Fromhold, T. M., Morris, P. G., Meyer, S. S., …Brookes, M. J. (2016). On the potential of a new generation of magnetometers for MEG: A beamformer simulation study. PLoS ONE, 11(8), Article e0157655. https://doi.org/10.1371/journal.pone.0157655

Magnetoencephalography (MEG) is a sophisticated tool which yields rich information on the spatial, spectral and temporal signatures of human brain function. Despite unique potential, MEG is limited by a low signal-to-noise ratio (SNR) which is caused... Read More about On the potential of a new generation of magnetometers for MEG: A beamformer simulation study.

The UK National Quantum Technologies Hub in sensors and metrology (Keynote Paper) (2016)
Presentation / Conference Contribution
Bongs, K., Boyer, V., Cruise, M., Freise, A., Holynski, M., Hughes, J., Kaushik, A., Lien, Y.-H., Niggebaum, A., Perea-Ortiz, M., Petrov, P., Plant, S., Singh, Y., Stabrawa, A., Paul, D., Sorel, M., Cumming, D., Marsh, J., Bowtell, R. W., Bason, M., …John, P. (2016, April). The UK National Quantum Technologies Hub in sensors and metrology (Keynote Paper). Presented at SPIE Photonics Europe, 2016, Brussels, Belgium

The UK National Quantum Technology Hub in Sensors and Metrology is one of four flagship initiatives in the UK National of Quantum Technology Program. As part of a 20-year vision it translates laboratory demonstrations to deployable practical devices,... Read More about The UK National Quantum Technologies Hub in sensors and metrology (Keynote Paper).

Mapping quantal touch using 7 Tesla functional magnetic resonance imaging and single-unit intraneural microstimulation (2016)
Journal Article
Sanchez Panchuelo, R., Ackerley, R. M., Glover, P. M., Bowtell, R. W., Wessberg, J., Francis, S. T., & McGlone, F. (2016). Mapping quantal touch using 7 Tesla functional magnetic resonance imaging and single-unit intraneural microstimulation. eLife, 5(MAY2016), Article e.Life.12812. https://doi.org/10.7554/elife.12812

Using ultra-high field 7 Tesla (7T) functional magnetic resonance imaging (fMRI), we map the cortical and perceptual responses elicited by intraneural microstimulation (INMS) of single mechanoreceptive afferent units in the median nerve, in humans. A... Read More about Mapping quantal touch using 7 Tesla functional magnetic resonance imaging and single-unit intraneural microstimulation.

A comparison of phase imaging and quantitative susceptibility mapping in the imaging of multiple sclerosis lesions at ultrahigh field (2016)
Journal Article
Cronin, M. J., Wharton, S., Al-Radaideh, A., Constantinescu, C., Evangelou, N., Bowtell, R. W., & Gowland, P. A. (2016). A comparison of phase imaging and quantitative susceptibility mapping in the imaging of multiple sclerosis lesions at ultrahigh field. Magnetic Resonance Materials in Physics, Biology and Medicine, 29(3), 543-557. https://doi.org/10.1007/s10334-016-0560-5

Objective

The aim of this study was to compare the use of high-resolution phase and QSM images acquired at ultra-high field in the investigation of multiple sclerosis (MS) lesions with peripheral rings, and to discuss their usefulness for drawing... Read More about A comparison of phase imaging and quantitative susceptibility mapping in the imaging of multiple sclerosis lesions at ultrahigh field.

Global signal modulation of single-trial fMRI response variability: effect on positive vs negative BOLD response relationship (2016)
Journal Article
Mayhew, S. D., Mullinger, K. J., Ostwald, D., Porcaro, C., Bowtell, R. W., Bagshaw, A. P., & Francis, S. T. (2016). Global signal modulation of single-trial fMRI response variability: effect on positive vs negative BOLD response relationship. NeuroImage, 133, https://doi.org/10.1016/j.neuroimage.2016.02.077

In functional magnetic resonance imaging (fMRI), the relationship between positive BOLD responses (PBRs) and negative BOLD responses (NBRs) to stimulation is potentially informative about the balance of excitatory and inhibitory brain responses in se... Read More about Global signal modulation of single-trial fMRI response variability: effect on positive vs negative BOLD response relationship.