Journal ArticleDOI
Conn: A Functional Connectivity Toolbox for Correlated and Anticorrelated Brain Networks
TLDR
The results indicate that the CompCor method increases the sensitivity and selectivity of fcMRI analysis, and show a high degree of interscan reliability for many fc MRI measures.Citations
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The effect of cannabidiol (CBD) on low-frequency activity and functional connectivity in the brain of adults with and without autism spectrum disorder (ASD).
Charlotte M. Pretzsch,Bogdan Voinescu,Maria Andreina Mendez,Robert Wichers,Laura Ajram,Glynis Ivin,Martin Heasman,Steven Williams,Declan G. Murphy,Eileen Daly,Grainne M. McAlonan +10 more
TL;DR: The results suggest that CBD alters regional fALFF and FC in/between regions consistently implicated in ASD, and future studies should examine if this affects the complex behaviours these regions modulate.
Journal ArticleDOI
Frequency-dependent functional connectivity of the nucleus accumbens during continuous transcutaneous vagus nerve stimulation in major depressive disorder.
Zengjian Wang,Jiliang Fang,Jun Liu,Peijing Rong,Kristen Jorgenson,Joel Park,Courtney Lang,Yang Hong,Bing Zhu,Jian Kong +9 more
TL;DR: It is demonstrated that tVNS can modulate low frequency intrinsic FC among key brain regions involved in reward and motivation processing and provide insights into the brain mechanism underlying tV NS treatment of MDD.
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Behavioral and Neural Signatures of Visual Imagery Vividness Extremes: Aphantasia versus Hyperphantasia.
Fraser Milton,Jon Fulford,Carla Dance,James Gaddum,Brittany Heuerman-Williamson,Kealan Jones,Kathryn F Knight,Matthew MacKisack,Crawford Winlove,Adam Zeman +9 more
TL;DR: The first systematic, wide-ranging neuropsychological and brain imaging study of people with aphantasia, hyperphantasia and midrange imagery vividness is reported, validating and illuminating this significant but neglected dimension of individual difference.
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The relationship between individual variation in macroscale functional gradients and distinct aspects of ongoing thought.
Brontë Mckeown,Will H. Strawson,Hao-Ting Wang,Theodoros Karapanagiotidis,Reinder Vos de Wael,Oualid Benkarim,Adam Turnbull,Daniel S. Margulies,Elizabeth Jefferies,Cade McCall,Boris C. Bernhardt,Jonathan Smallwood +11 more
TL;DR: In this article, a non-linear dimension reduction algorithm was applied to the resting-state functional magnetic resonance imaging (rs-fMRI) data to identify components explaining the greatest variance in whole-brain connectivity patterns.
Journal ArticleDOI
Effects of in-Scanner Bilateral Frontal tDCS on Functional Connectivity of the Working Memory Network in Older Adults
Nicole R. Nissim,Andrew O’Shea,Aprinda Indahlastari,Rachel Telles,Lindsey Richards,Eric C. Porges,Ronald A. Cohen,Adam J. Woods,Adam J. Woods +8 more
TL;DR: This mechanistic study investigated the acute and after-effects of bilateral frontal (F3/F4) tDCS at 2 mA for 12-min on functional connectivity of the working memory network in older adults to provide important mechanistic insight into the effects of tDCS on brain connectivity in older Adults.
References
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Journal ArticleDOI
Collective dynamics of small-world networks
TL;DR: Simple models of networks that can be tuned through this middle ground: regular networks ‘rewired’ to introduce increasing amounts of disorder are explored, finding that these systems can be highly clustered, like regular lattices, yet have small characteristic path lengths, like random graphs.
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A default mode of brain function.
Marcus E. Raichle,Ann Mary MacLeod,Abraham Z. Snyder,William J. Powers,Debra A. Gusnard,Gordon L. Shulman +5 more
TL;DR: A baseline state of the normal adult human brain in terms of the brain oxygen extraction fraction or OEF is identified, suggesting the existence of an organized, baseline default mode of brain function that is suspended during specific goal-directed behaviors.
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Complex brain networks: graph theoretical analysis of structural and functional systems
Edward T. Bullmore,Olaf Sporns +1 more
TL;DR: This article reviews studies investigating complex brain networks in diverse experimental modalities and provides an accessible introduction to the basic principles of graph theory and highlights the technical challenges and key questions to be addressed by future developments in this rapidly moving field.
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Functional connectivity in the motor cortex of resting human brain using echo-planar MRI.
TL;DR: It is concluded that correlation of low frequency fluctuations, which may arise from fluctuations in blood oxygenation or flow, is a manifestation of functional connectivity of the brain.
Journal ArticleDOI
The Brain's Default Network Anatomy, Function, and Relevance to Disease
TL;DR: Past observations are synthesized to provide strong evidence that the default network is a specific, anatomically defined brain system preferentially active when individuals are not focused on the external environment, and for understanding mental disorders including autism, schizophrenia, and Alzheimer's disease.