Resting brains never rest: computational insights into potential cognitive architectures
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TLDR
A new theoretical framework for RSNs is proposed that can serve as a fertile ground for empirical testing and reflects the dynamical capabilities of the brain, which emphasizes the vital interplay of time and space.About:
This article is published in Trends in Neurosciences.The article was published on 2013-05-01 and is currently open access. It has received 327 citations till now. The article focuses on the topics: Network dynamics & Resting state fMRI.read more
Citations
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Ongoing dynamics in large-scale functional connectivity predict perception
TL;DR: Investigation of whether ongoing changes in baseline functional connectivity correlate with perception in a continuous auditory detection task found that functional connectivity before the target predicted whether it was heard or missed, and a highly modular network structure seems beneficial to perceptual efficiency.
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Autism: reduced connectivity between cortical areas involved in face expression, theory of mind, and the sense of self.
TL;DR: Examination of whole-brain voxel-based resting-state functional connectivity in 418 people with autism reveals reduced connectivity between regions involved in facial expression processing and theory of mind, emotion processing, and the representation of self.
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Metastability and Coherence: Extending the Communication through Coherence Hypothesis Using A Whole-Brain Computational Perspective
TL;DR: This work links CTC to the concept of metastability, which refers to a rich exploration of the functional repertoire made possible by the underlying structural whole-brain connectivity, which is a fundamental brain mechanism for large-scale, distant communication.
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A critical review of the allocentric spatial representation and its neural underpinnings: toward a network-based perspective
TL;DR: It is argued that although allocentric computations will often require the hippocampus, particularly those involving extracting details across temporally specific routes, the hippocampus is not necessary for all allocentric computation, and a non-aggregate network process involving multiple interacting brain areas better characterizes the neural basis of spatial representation during navigation.
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Network Structure Shapes Spontaneous Functional Connectivity Dynamics
Kelly Shen,R. M. Hutchison,R. M. Hutchison,Gleb Bezgin,Stefan Everling,Stefan Everling,Anthony R. McIntosh +6 more
TL;DR: The data suggest that the transient nature of FC is in part dependent on direct underlying structural connections, but also that dynamic coordination can occur via polysynaptic pathways, and further elucidate how large-scale dynamic functional coordination exists within a fixed structural architecture.
References
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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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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.
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Functional connectivity in the resting brain: A network analysis of the default mode hypothesis
TL;DR: This study constitutes, to the knowledge, the first resting-state connectivity analysis of the default mode and provides the most compelling evidence to date for the existence of a cohesive default mode network.
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Consistent resting-state networks across healthy subjects
Jessica S. Damoiseaux,Serge A.R.B. Rombouts,Frederik Barkhof,Philip Scheltens,Cornelis J. Stam,Stephen M. Smith,Christian F. Beckmann +6 more
TL;DR: Findings show that the baseline activity of the brain is consistent across subjects exhibiting significant temporal dynamics, with percentage BOLD signal change comparable with the signal changes found in task-related experiments.
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Mapping the Structural Core of Human Cerebral Cortex
Patric Hagmann,Leila Cammoun,Xavier Gigandet,Reto Meuli,Christopher J. Honey,Van J. Wedeen,Olaf Sporns +6 more
TL;DR: The spatial and topological centrality of the core within cortex suggests an important role in functional integration and a substantial correspondence between structural connectivity and resting-state functional connectivity measured in the same participants.
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