Results 41 to 50 of about 871,457 (367)

Robust vestibular self-motion signals in macaque posterior cingulate region

bioRxiv, 2020
Self-motion signals, distributed ubiquitously across parietal-temporal lobes, propagate to limbic hippocampal system for vector-based navigation via hubs including posterior cingulate cortex (PCC) and retrosplenial cortex (RSC). Although numerous studies
Bingyu Liu, Qingyang Tian, Yong Gu
semanticscholar   +1 more source

Changes in resting neural connectivity during propofol sedation.

PLoS ONE, 2010
BackgroundThe default mode network consists of a set of functionally connected brain regions (posterior cingulate, medial prefrontal cortex and bilateral parietal cortex) maximally active in functional imaging studies under "no task" conditions.
Emmanuel A Stamatakis, Ram M Adapa, Anthony R Absalom, David K Menon   +3 more
doaj   +1 more source

Brain MR Spectroscopy Changes Precede Frontotemporal Lobar Degeneration Phenoconversion in Mapt Mutation Carriers. [PDF]

, 2019
Background and purposeThe objective of this study was to longitudinally investigate the trajectory of change in 1 H MRS measurements in asymptomatic MAPT mutation carriers who became symptomatic during follow-up, and to determine the time at which the ...
Boeve, Bradley F, Boxer, Adam L, Brushaber, Danielle, Chen, Qin, Dheel, Christina, Fields, Julie, Forsberg, Leah, Gavrilova, Ralitza, Gearhart, Debra, Graff-Radford, Jonathan, Graff-Radford, Neill, Gunter, Jeffrey L, Haley, Dana, Jones, David, Kantarci, Kejal, Knopman, David, Kraft, Ruth, Lapid, Maria, Lesnick, Timothy, Rademakers, Rosa, Rosen, Howie, Tosakulwong, Nirubol, Wszolek, Zbigniew K   +22 more
core   +3 more sources

Echoes of the Brain within the Posterior Cingulate Cortex [PDF]

The Journal of Neuroscience, 2012
There is considerable uncertainty about the function of the posterior cingulate cortex (PCC). The PCC is a major node within the default mode network (DMN) and has high metabolic activity and dense structural connectivity to widespread brain regions, which suggests it has a role as a cortical hub.
David J. Sharp, Robert Leech, Rodrigo M. Braga   +2 more
openaire   +3 more sources

Regional Coherence Alterations Revealed by Resting-State fMRI in Post-Stroke Patients with Cognitive Dysfunction. [PDF]

PLoS ONE, 2016
Post-stroke cognitive dysfunction greatly influences patients' quality of life after stroke. However, its neurophysiological basis remains unknown.
Cheng-Yu Peng, Yu-Chen Chen, Ying Cui, Deng-Ling Zhao, Yun Jiao, Tian-Yu Tang, Shenghong Ju, Gao-Jun Teng   +7 more
doaj   +1 more source

The resting microstate networks (RMN): cortical distributions, dynamics, and frequency specific information flow [PDF]

, 2014
A brain microstate is characterized by a unique, fixed spatial distribution of electrically active neurons with time varying amplitude. It is hypothesized that a microstate implements a functional/physiological state of the brain during which specific ...
Faber, Pascal, Isotani, Toshiaki, Kinoshita, Toshihiko, Kochi, Kieko, Lehmann, Dietrich, Milz, Patricia, Nishida, Keiichiro, Pascual-Marqui, Roberto D, Yoshimura, Masafumi   +8 more
core   +1 more source

Effortless awareness: using real time neurofeedback to investigate correlates of posterior cingulate cortex activity in meditators’ self-report.

Frontiers in Human Neuroscience, 2013
Neurophenomenological studies seek to utilize first-person self-report to elucidate cognitive processes related to physiological data. Grounded theory offers an approach to the qualitative analysis of self-report, whereby theoretical constructs are ...
Kathleen eGarrison, Juan eSantoyo, Jake eDavis, Thomas eThornhill, Catherine eKerr, Judson eBrewer   +5 more
doaj   +1 more source

Sub-cortical and brainstem sites associated with chemo-stimulated increases in ventilation in humans [PDF]

, 2010
We investigated the neural basis for spontaneous chemo-stimulated increases in ventilation in awake, healthy humans. Blood oxygen level dependent (BOLD) functional MRI was performed in nine healthy subjects using T2weighted echo planar imaging.
Ackland, Akopyan, Banzett, Bertrand, Bianchi, Brannan, Cavanna, Cechetto, Chamberlin, Chamberlin, Chen, Colebatch, Corfield, Corfield, Critchley, Dick, Douglas, Douglas, Douglas R. Corfield, Duvernoy, Duvernoy, Evans, Evans, Fink, Fink, Friston, Friston, Gandevia, Gaytan, Gray, Haines, Harper, Herbert, Heywood, Hugo D. Critchley, Isaev, Kevin Murphy, Kjaer, Koos, Kubin, Kumar, Lavezzi, Leanne C. McKay, Macey, McKay, McKay, McKay, Middleton, Mink, Nathan, Pattinson, Peiffer, Plum, Plum, Ramsay, Richard S.J. Frackowiak, Schmahmann, Schwarzacher, Severinghaus, Shea, Skatrud, Smith, Smith, Talairach, Wenninger, Worsley, Xu, Yokota   +67 more
core   +2 more sources

Altered posterior cingulate cortical cyctoarchitecture, but normal density of neurons and interneurons in the posterior cingulate cortex and fusiform gyrus in autism [PDF]

Autism Research, 2011
AbstractAutism is a developmental disorder with prenatal origins, currently estimated to affect 1 in 91 children in the United States. Social‐emotional deficits are a hallmark of autism and early neuropathology studies have indicated involvement of the limbic system. Imaging studies demonstrate abnormal activation of the posterior cingulate cortex (PCC)
Douglas L. Rosene, Gene J. Blatt, Adrian L. Oblak, Margaret L. Bauman, Thomas L. Kemper   +4 more
openaire   +3 more sources

Posterior cingulate cortex: adapting behavior to a changing world [PDF]

Trends in Cognitive Sciences, 2011
When has the world changed enough to warrant a new approach? The answer depends on current needs, behavioral flexibility and prior knowledge about the environment. Formal approaches solve the problem by integrating the recent history of rewards, errors, uncertainty and context via Bayesian inference to detect changes in the world and alter behavioral ...
David L. Barack, Sarah R. Heilbronner, John M. Pearson, Michael L. Platt, Benjamin Y. Hayden   +4 more
openaire   +3 more sources