Questions and controversies in the study of time-varying functional connectivity in resting fMRI

DJ Lurie, D Kessler, DS Bassett, RF Betzel… - Network …, 2020 - direct.mit.edu
The brain is a complex, multiscale dynamical system composed of many interacting regions.
Knowledge of the spatiotemporal organization of these interactions is critical for establishing …

Bring the noise: reconceptualizing spontaneous neural activity

LQ Uddin - Trends in Cognitive Sciences, 2020 - cell.com
Definitions of what constitutes the 'signal of interest'in neuroscience can be controversial,
due in part to continuously evolving notions regarding the significance of spontaneous …

Interacting spiral wave patterns underlie complex brain dynamics and are related to cognitive processing

Y Xu, X Long, J Feng, P Gong - Nature human behaviour, 2023 - nature.com
The large-scale activity of the human brain exhibits rich and complex patterns, but the
spatiotemporal dynamics of these patterns and their functional roles in cognition remain …

The global signal in fMRI: Nuisance or Information?

TT Liu, A Nalci, M Falahpour - Neuroimage, 2017 - Elsevier
The global signal is widely used as a regressor or normalization factor for removing the
effects of global variations in the analysis of functional magnetic resonance imaging (fMRI) …

Ultra-slow oscillations in fMRI and resting-state connectivity: neuronal and vascular contributions and technical confounds

PJ Drew, C Mateo, KL Turner, X Yu, D Kleinfeld - Neuron, 2020 - cell.com
Summary Ultra-slow,∼ 0.1-Hz variations in the oxygenation level of brain blood are widely
used as an fMRI-based surrogate of" resting-state" neuronal activity. The temporal …

Ultra-fast magnetic resonance encephalography of physiological brain activity–glymphatic pulsation mechanisms?

V Kiviniemi, X Wang, V Korhonen… - Journal of Cerebral …, 2016 - journals.sagepub.com
The theory on the glymphatic convection mechanism of cerebrospinal fluid holds that
cardiac pulsations in part pump cerebrospinal fluid from the peri-arterial spaces through the …

[HTML][HTML] Functional connectivity under six anesthesia protocols and the awake condition in rat brain

J Paasonen, P Stenroos, RA Salo, V Kiviniemi… - Neuroimage, 2018 - Elsevier
Resting-state functional magnetic resonance imaging (rsfMRI) is a translational imaging
method with great potential in several neurobiologic applications. Most preclinical rsfMRI …

A parsimonious description of global functional brain organization in three spatiotemporal patterns

T Bolt, JS Nomi, D Bzdok, JA Salas, C Chang… - Nature …, 2022 - nature.com
Resting-state functional magnetic resonance imaging (MRI) has yielded seemingly
disparate insights into large-scale organization of the human brain. The brain's large-scale …

The behavioral and cognitive relevance of time-varying, dynamic changes in functional connectivity

JR Cohen - NeuroImage, 2018 - Elsevier
Recent advances in neuroimaging methods and analysis have led to an expanding body of
research that investigates how large-scale brain network organization dynamically adapts to …

Intrinsic macroscale oscillatory modes driving long range functional connectivity in female rat brains detected by ultrafast fMRI

J Cabral, FF Fernandes, N Shemesh - Nature Communications, 2023 - nature.com
Spontaneous fluctuations in functional magnetic resonance imaging (fMRI) signals correlate
across distant brain areas, shaping functionally relevant intrinsic networks. However, the …