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The effect of rule retrieval on activity in the default mode network
2021
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Acknowledgements This work was supported by the Medical Research Council (UK) intramural program SUAG/002/RG91365.
Appendix A. ...
Introduction The default mode network (DMN) is a set of brain regions including parts of the posterior cingulate, medial prefrontal, retrosplenial, medial temporal, lateral temporal and inferior parietal ...
In the present study, the effect of rule retrieval was observed in core and dmPFC subnetworks, but not the MTL subnetwork. ...
doi:10.17863/cam.72429
fatcat:iq4xzirnazebddglsr3d5tnzdi
Consolidation in older adults depends upon competition between resting-state networks
2015
Frontiers in Aging Neuroscience
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between the default mode and the executive networks during the after encoding condition was associated with increased retrieval performance in the older adults, but not in the young group. ...
Data suggest that the effective formation of memory traces depends on an age-dependent, dynamic reorganization of the interaction between multiple, large-scale functional networks. ...
One might argue that participants were actively rehearsing the stimuli for later retrieval and that this effect is reflected in the BOLD signal changes. ...
doi:10.3389/fnagi.2014.00344
pmid:25620930
pmcid:PMC4288239
fatcat:qefcedklwrczhoymbzwccctmt4
The Default Mode Network and the Working Memory Network Are Not Anti-Correlated during All Phases of a Working Memory Task
2015
PLoS ONE
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of working memory (encoding, maintenance, and retrieval), and analyzed the functional connectivity during each phase within and between the default mode network and the working memory network networks ...
Introduction The default mode network and the working memory network are known to be anti-correlated during sustained cognitive processing, in a load-dependent manner. ...
load effects in one or in both of the areas compared. ...
doi:10.1371/journal.pone.0123354
pmid:25848951
pmcid:PMC4388669
fatcat:47dvfcnx4fgn5c3mqrxcx23esq
Default mode contributions to automated information processing
2017
Proceedings of the National Academy of Sciences of the United States of America
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While applying learned rules, the default mode network shows both greater activity and connectivity. ...
Using a cognitive flexibility task, we show that a set of brain regions collectively known as the default mode network plays a crucial role in such "autopilot" behavior, i.e., when rapidly selecting appropriate ...
Marius Mada, and the rest of the staff in the Wolfson Brain Imaging Centre (WBIC) at Addenbrooke's Hospital for their assistance in MRI scanning. ...
doi:10.1073/pnas.1710521114
pmid:29078345
pmcid:PMC5715758
fatcat:fd4ddw4sejhfzeyjsqclb5ap3u
Recruitment of the default mode network during a demanding act of executive control
2015
eLife
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In the human brain, a default mode or task-negative network shows reduced activity during many cognitive tasks and is often associated with internally-directed processes, such as mind wandering and thoughts ...
Activity in this network may be driven by major revisions of cognitive context, whether internally or externally focused. ...
The funder had no role in study design, data collection and interpretation, or the decision to submit the work for publication. ...
doi:10.7554/elife.06481
pmid:25866927
pmcid:PMC4427863
fatcat:e4zrzqcuarf7thz7fywetdvdia
Neural antagonistic mechanism between default-mode and task-positive networks
2020
Neurocomputing
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Our research group combined the default mode network (DMN) with the working memory model, chosen as the task positive network (TPN), to carry out computational simulation under various stimulus conditions ...
increasing stimulus directions on the working memory; 3) neural activities in TNN decreased as long as that in working memory-related brain regions increase; 4) the more difficult the working memory task ...
Acknowledgments This work was supported/by the National Natural Science Foundation of China (Funding number: 11472104, 11872180. ...
doi:10.1016/j.neucom.2020.07.079
fatcat:xijcx65x7bda7gt5oihpkd4hny
Delta Learning Rule for the Active Sites Model
[article]
2010
arXiv
pre-print
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This paper reports the results on methods of comparing the memory retrieval capacity of the Hebbian neural network which implements the B-Matrix approach, by using the Widrow-Hoff rule of learning. ...
We then, extend the recently proposed Active Sites model by developing a delta rule to increase memory capacity. ...
In the Widrow-Hoff model, we try to adjust the weights that are stored in the network iteratively to increase the chances of retrieving memories from the network. the idea behind this mode of learning ...
arXiv:1007.0417v1
fatcat:lcxytqvubna6pmt6skdhtzshx4
A neural network for probabilistic information retrieval
1989
SIGIR Forum
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This paper demonstrates how a neural network may be constructed, together with learning algorithms and modes of operation, that will provide retrieval-effectiveness similar to that of the probabilistic ...
indexing and retrieval model based on single terms as document components. ...
of
ak,
the
activities
on neuron
k. ...
doi:10.1145/75335.75338
fatcat:xu6bvqqvgzdz7msygzgoxpayym
In silico screening of anti-inflammatory constituents with good drug-like properties from twigs of Cinnamomum cassia based on molecular docking and network pharmacology
2021
Tropical Journal of Pharmaceutical Research
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Methods: Information on the constituents of C. cassia twigs was retrieved from the online Traditional Chinese Medicines (TCM) database and literature. ...
Purpose: To investigate by in silico screening the anti-inflammatory constituents of Cinnamomum cassia twigs. ...
The results for proposed binding mode of some of the crucial target proteins and active compounds are shown in Figure 1 . ...
doi:10.4314/tjpr.v18i10.18
fatcat:f2ncooxiqjbqrhno4cituiomti
Spindle - slow oscillation coupling correlates with memory performance and connectivity changes in a hippocampal network after sleep
[article]
2021
bioRxiv
pre-print
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Our results show task-related connectivity changes in the executive control network, the default mode network, and the hippocampal network at post-task rest. ...
The hippocampal network could further be divided into two subnetworks of which only one showed modulation by sleep. ...
Acknowledgments The study was supported by a Branco Weiss Fellowship -Society in Science -awarded to L.G. ...
doi:10.1101/2021.10.27.466071
fatcat:5wgcaj33ifa7bkd566kuxyxhky
Balancing Excitation and Inhibition
2015
Neuron
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Hemodynamic activities in these two areas co-vary at rest, are part of the default-mode network, and are activated during episodic memory retrieval (Vann et al., 2009; Wagner et al., 2005) . ...
The default mode network (DMN) encompasses many areas, including parts of the PPC, which are active during rest and/or internally focused tasks such as memory retrieval and other self-referential activities ...
doi:10.1016/j.neuron.2015.04.009
pmid:25905806
fatcat:m66xuwaotzc6ro6xqiu3dojphe
How Does Rumination Impact Cognition? A First Mechanistic Model
2018
Topics in Cognitive Science
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On the basis of this empirically derived memory structure, our model naturally predicts the declines in cognitive task performance that are typically observed in depressed Correspondence should be sent ...
during rumination the same set of negative memories is retrieved repeatedly. ...
Acknowledgments This research was supported in part by a Mind & Life visiting scholarship to MvV. Elske Bos and Evelien Snippe helped guide us to the relevant experience sampling data. Note 1. ...
doi:10.1111/tops.12318
pmid:29383884
fatcat:grryodgqhrfjpfruspjwl4vtky
Role of the default mode network in cognitive transitions
[article]
2018
biorxiv/medrxiv
pre-print
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A frequently repeated finding is that the default mode network (DMN) shows activation decreases during externally-focused tasks. ...
This finding has led to an emphasis in DMN research on internally-focused self-relevant thought processes. ...
Conflict of Interest: None declared.
Supplementary Material Supplementary material is available at Cerebral Cortex online. ...
doi:10.1101/295683
fatcat:tvns7taghfebvam43vbbb36qsu
Neural networks supporting switching, hypothesis testing, and rule application
2015
Neuropsychologia
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As subjects shifted from hypothesis testing to rule application, activity in this network decreased and activity in the somatomotor and default mode networks increased. ...
This network was sensitive to rule learning speed, with greater extended activity for the slowest learning speed late in the time course of learning. ...
Acknowledgments This study was supported by the National Institutes of Health, USA (R01 MH079182), the Chiang Jiang Scholars program of the Ministry of Education of China, and the National Natural Science ...
doi:10.1016/j.neuropsychologia.2015.07.019
pmid:26197092
pmcid:PMC4609611
fatcat:oyl6f6jhejcnlknxwxgug7cmou
Posterior cingulate cortex: adapting behavior to a changing world
2011
Trends in Cognitive Sciences
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Neuronal activity in posterior cingulate cortexa key node in the default networkis known to vary with learning, memory, reward and task engagement. ...
For example, drivers stuck in unexpected traffic do not gradually modify Opinion Glossary Bayes' rule: a rule of statistical inference used for updating uncertainty about statistical parameters (u) based ...
Supplementary data Supplementary data associated with this article can be found, in the online version, at doi:10.1016/j.tics.2011. 02.002. ...
doi:10.1016/j.tics.2011.02.002
pmid:21420893
pmcid:PMC3070780
fatcat:3xkh5whbxbgsthneytfxgm6lcm
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