Blink-related momentary activation of the default mode network while viewing videos
Tamami Nakano,Tamami Nakano,Makoto Kato,Yusuke Morito,Seishi Itoi,Shigeru Kitazawa,Shigeru Kitazawa +6 more
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TLDR
The results suggest that eyeblinks are actively involved in the process of attentional disengagement during a cognitive behavior by momentarily activating the default-mode network while deactivating the dorsal attention network.Citations
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A Review of Eye Gaze in Virtual Agents, Social Robotics and HCI: Behaviour Generation, User Interaction and Perception
Kerstin Ruhland,Christopher Peters,Sean Andrist,Jeremy B. Badler,Jeremy B. Badler,Norman I. Badler,Michael Gleicher,Michael Gleicher,Bilge Mutlu,Rachel McDonnell +9 more
TL;DR: In this article, a review article provides an overview of the efforts made on tackling this demanding task and discusses how these findings can be synthesized in computer graphics and can be utilized in the domains of Human-Robot Interaction and Human-Computer Interaction for allowing humans to interact with virtual agents and other artificial entities.
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Different topological organization of human brain functional networks with eyes open versus eyes closed
Pengfei Xu,Ruiwang Huang,Ruiwang Huang,Jinhui Wang,Nicholas T. Van Dam,Teng Xie,Zhang-Ye Dong,Chunping Chen,Ruolei Gu,Yu-Feng Zang,Yong He,Jin Fan,Yuejia Luo +12 more
TL;DR: The results may indicate that EO leads to a suppression of sensory modalities (other than visual) to allocate resources to exteroceptive processing, and the topological organization of human brain networks dynamically switches corresponding to the information processing modes as the authors open or close their eyes.
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Neural substrates of shared attention as social memory: A hyperscanning functional magnetic resonance imaging study.
Takahiko Koike,Hiroki C. Tanabe,Shuntaro Okazaki,Eri Nakagawa,Akihiro T. Sasaki,Koji Shimada,Sho K. Sugawara,Haruka K. Takahashi,Kazufumi Yoshihara,Jorge Bosch-Bayard,Norihiro Sadato,Norihiro Sadato +11 more
TL;DR: Results indicate that shared attention is represented and retained by pair-specific neural synchronization that cannot be reduced to the individual level.
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Ultra-slow Oscillations in fMRI and Resting-State Connectivity: Neuronal and Vascular Contributions and Technical Confounds
TL;DR: Significant confounds to estimates of functional connectivity arise from residual vasomotor activity as well as arteriole dynamics driven by self-generated movements and subcortical common modulatory inputs, which can lead to spurious functional connections.
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Internally-directed cognition and mindfulness: An integrative perspective derived from predictive and reactive control systems theory
TL;DR: The predictive and reactive control systems (PARCS) theory as mentioned in this paper integrates competing theories of neural substrates of awareness by describing the default mode network (DMN) and anterior insula (AI) as parts of two different behavioral and homeostatic control systems.
References
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Control of goal-directed and stimulus-driven attention in the brain
TL;DR: Evidence for partially segregated networks of brain areas that carry out different attentional functions is reviewed, finding that one system is involved in preparing and applying goal-directed selection for stimuli and responses, and the other is specialized for the detection of behaviourally relevant stimuli.
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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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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.
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The human brain is intrinsically organized into dynamic, anticorrelated functional networks
Michael D. Fox,Abraham Z. Snyder,Justin L. Vincent,Maurizio Corbetta,David C. Van Essen,Marcus E. Raichle +5 more
TL;DR: It is suggested that both task-driven neuronal responses and behavior are reflections of this dynamic, ongoing, functional organization of the brain, featuring the presence of anticorrelated networks in the absence of overt task performance.
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Wandering Minds: The Default Network and Stimulus-Independent Thought
Malia F. Mason,Michael I. Norton,John D. Van Horn,Daniel M. Wegner,Scott T. Grafton,C. Neil Macrae +5 more
TL;DR: It was demonstrated that mind-wandering is associated with activity in a default network of cortical regions that are active when the brain is “at rest” and individuals' reports of the tendency of their minds to wander were correlated with activity on this network.