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The effect of rule retrieval on activity in the default mode network

Verity Smith, Danny Mitchell, John Duncan, Apollo-University Of Cambridge Repository
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

Heidi I. L. Jacobs, Kim N. H. Dillen, Okka Risius, Yasemin Göreci, Oezguer A. Onur, Gereon R. Fink, Juraj Kukolja
2015 Frontiers in Aging Neuroscience  
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

Tommaso Piccoli, Giancarlo Valente, David E. J. Linden, Marta Re, Fabrizio Esposito, Alexander T. Sack, Francesco Di Salle, Michelle Hampson
2015 PLoS ONE  
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

Deniz Vatansever, David K. Menon, Emmanuel A. Stamatakis
2017 Proceedings of the National Academy of Sciences of the United States of America  
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

Ben M Crittenden, Daniel J Mitchell, John Duncan
2015 eLife  
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

Xianjun Cheng, Yue Yuan, Yihong Wang, Rubin Wang
2020 Neurocomputing  
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]

Krishna Chaithanya Lingashetty
2010 arXiv   pre-print
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

K. L. Kwok
1989 SIGIR Forum  
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

Qing Zhang, Ruolan Li, Jia Liu, Wei Peng, Yongxiang Gao, Chunjie Wu, Xufeng Pu
2021 Tropical Journal of Pharmaceutical Research  
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]

Lisa Marie Bastian, Anumita Samanta, Demetrius Ribeiro de Paula, Frederik Weber, Robby Schoenfeld, Martin Dresler, Lisa Genzel
2021 bioRxiv   pre-print
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

Alfredo Kirkwood
2015 Neuron  
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

Marieke K. van Vugt, Maarten van der Velde
2018 Topics in Cognitive Science  
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]

Verity Smith, Daniel J Mitchell, John Duncan
2018 biorxiv/medrxiv   pre-print
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

Zhiya Liu, Kurt Braunlich, Hillary S. Wehe, Carol A. Seger
2015 Neuropsychologia  
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

John M. Pearson, Sarah R. Heilbronner, David L. Barack, Benjamin Y. Hayden, Michael L. Platt
2011 Trends in Cognitive Sciences  
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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