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Precision and neuronal dynamics in the human posterior parietal cortex during evidence accumulation

Thomas H.B. FitzGerald, Rosalyn J. Moran, Karl J. Friston, Raymond J. Dolan
2015 NeuroImage  
Primate studies show slow ramping activity in posterior parietal cortex (PPC) neurons during perceptual decision-making.  ...  Our findings indicate that the dynamics of neuronal activity in the human PPC during perceptual decision-making recapitulate those observed in the macaque, and in so doing we link observations from primate  ...  Hunt and the rest of the Emotion group for their insightful comments, and G. Barnes and D. Bradbury for helping with the MEG recording and analysis sequences.  ... 
doi:10.1016/j.neuroimage.2014.12.015 pmid:25512038 pmcid:PMC4306525 fatcat:5k5twg6gbrgi5gvzoxfkdv7miu

Cortical Network Dynamics of Perceptual Decision-Making in the Human Brain

Markus Siegel, Andreas K. Engel, Tobias H. Donner
2011 Frontiers in Human Neuroscience  
We used magnetoencephalography to measure the large-scale cortical population dynamics underlying each of the sub-processes involved in this decision: the encoding of sensory evidence and action plan,  ...  Localized gamma-band oscillations in sensory and motor cortices reflect the encoding of the sensory evidence and motor plan.  ...  These studies have shown that neurons in sensory, parietal, and frontal cortices, are involved in encoding the sensory evidence, accumulating this evidence over time, and planning the ensuing motor action  ... 
doi:10.3389/fnhum.2011.00021 pmid:21427777 pmcid:PMC3047300 fatcat:uw7vyk4ywzcfvhr47ojwwuz5ee

Role of Prefrontal Persistent Activity in Working Memory

Mitchell R. Riley, Christos Constantinidis
2016 Frontiers in Systems Neuroscience  
The prefrontal cortex is activated during working memory, as evidenced by fMRI results in human studies and neurophysiological recordings in animal models.  ...  By some accounts, activity in other brain areas, such as the primary visual and posterior parietal cortex, is a better predictor of information maintained in visual working memory and working memory performance  ...  Persistent discharges in the prefrontal and posterior parietal cortex reveal few differences between the two areas and no obvious neural correlate that is present only in the posterior parietal cortex  ... 
doi:10.3389/fnsys.2015.00181 pmid:26778980 pmcid:PMC4700146 fatcat:wcpakzhzurgizlenja3uye2w7u

Neural underpinnings of the evidence accumulator

Carlos D Brody, Timothy D Hanks
2016 Current Opinion in Neurobiology  
Gradual accumulation of evidence favoring one or another choice is considered a core component of many different types of decisions, and has been the subject of many neurophysiological studies in non-human  ...  In complement to ongoing nonhuman primate studies, these newly available model systems and tools place the field at an exciting time that suggests that the dynamical circuit mechanisms underlying accumulation  ...  Acknowledgments We gratefully acknowledge funding from NIH grant 1R01MH108358 and Simons Collaboration on the Global Brain award 325403 to CDB and NIH grant F32MH098572 to TDH.  ... 
doi:10.1016/j.conb.2016.01.003 pmid:26878969 pmcid:PMC5777584 fatcat:g5lzext7qngsblydg6khrnwamy

The Time-Budget Perspective of the Role of Time Dimension in Modular Network Dynamics during Functions of the Brain [chapter]

Daya S. Gupta, Silmar Teixeira
2018 Primates  
Information processing plays a key role in the daily activities of human and nonhuman primates.  ...  Keywords: time dimension in the brain, mirror neuron, modular network in the brain, visuomotor synchronization, muscle synergy, interval timing, movement timing  ...  Acknowledgements We like to thank Marcos Ayres from the Brain Mapping and Cerebral Plasticity Laboratory, Federal University of Piauí, for the final figure artworks.  ... 
doi:10.5772/intechopen.70588 fatcat:45tsysim7ffhjb5r4s5fw67hcq

The cognitive neuroscience of prehension: recent developments

Scott T. Grafton
2010 Experimental Brain Research  
These include consideration of how parallel perceptual networks within parietal cortex, along with the ventral stream, are connected and share information to achieve common motor goals.  ...  Prehension, the capacity to reach and grasp, is the key behavior that allows humans to change their environment.  ...  License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.  ... 
doi:10.1007/s00221-010-2315-2 pmid:20532487 pmcid:PMC2903689 fatcat:xd4umtodmfberpsm5zmgokt7d4

From visual affordances in monkey parietal cortex to hippocampo-parietal interactions underlying rat navigation

M. A. Arbib
1997 Philosophical Transactions of the Royal Society of London. Biological Sciences  
The formal similarity between dynamic remapping (primate saccades) and path integration (rat navigation) is noted, and certain available data on rat posterior parietal cortex in terms of a¡ordances for  ...  in the posterior parietal cortex of the monkey that are sensitive to visual motion.  ...  in the posterior parietal cortex of the monkey that are sensitive to visual motion.  ... 
doi:10.1098/rstb.1997.0129 pmid:9368931 pmcid:PMC1692057 fatcat:s2bkwuyvlbgwhlvtxx6k3e2rre

Computational specialization within the cortical eye movement system [article]

Tom R Marshall, Maria Ruesseler, Laurence T Hunt, Jill X O'Reilly
2021 bioRxiv   pre-print
This frontal/parietal specialization can be linked to the differential characteristics of cortical circuits, and thus may represent a more general organizing principle of sensorimotor function in the primate  ...  We localized these signals to the frontal eye fields and intra-parietal cortex, respectively, using whole-brain, high-temporal-resolution neuroimaging (MEG).  ...  Acknowledgements The authors would like to thank Sven Braeutigam for technical assistance with data collection, and Eelke Spaak for helpful comments on an earlier version of this manuscript.  ... 
doi:10.1101/2021.05.03.442155 fatcat:hfzynn3ptnehhnfn7jnfro4hgy

Electrocorticography reveals the temporal dynamics of posterior parietal cortical activity during recognition memory decisions

Alex Gonzalez, J. Benjamin Hutchinson, Melina R. Uncapher, Janice Chen, Karen F. LaRocque, Brett L. Foster, Vinitha Rangarajan, Josef Parvizi, Anthony D. Wagner
2015 Proceedings of the National Academy of Sciences of the United States of America  
Significance Over the past decade, human posterior parietal cortex (PPC) has been unexpectedly implicated in remembering and memory-related decision making.  ...  A mechanistic interpretation of such activity is that IPS neurons act as evidence accumulators, with a distinct population of IPS neurons accumulating evidence toward each of the two decision bounds.  ...  Dora Hermes for cortex rendering code, Dr. Mohammad Dastjerdi for initial preprocessing scripts, and the Stanford Epilepsy Monitoring Unit Staff for assistance in data recording.  ... 
doi:10.1073/pnas.1510749112 pmid:26283375 pmcid:PMC4568245 fatcat:6awibfdfv5c2vpadwcml4a5npe

Ramping activity is a cortical mechanism of temporal control of action

Nandakumar S Narayanan
2016 Current Opinion in Behavioral Sciences  
Finally, stimulating prefrontal neurons in medial frontal cortex can influence the timing of movement.  ...  A fundamental feature of the mammalian cortex is to guide movements in time.  ...  In the last decade, evidence has accumulated that frontal and visual cortical areas are also required for temporal control of action.  ... 
doi:10.1016/j.cobeha.2016.02.017 pmid:27171843 pmcid:PMC4860273 fatcat:ofdwtb5hlfck7ly5rnxona55le

Anteroposterior somatotopy of innocuous cooling activation focus in human dorsal posterior insular cortex

Le H. Hua, Irina A. Strigo, Leslie C. Baxter, Sterling C. Johnson, A. D. (Bud) Craig
2005 American Journal of Physiology. Regulatory Integrative and Comparative Physiology  
Prior data indicate that graded activation by innocuous thermal stimuli occurs in the dorsal posterior insular (dpIns) cortex of humans, rather than the parietal somatosensory regions traditionally thought  ...  Finally, another focus of strongly graded activation, which we interpret to represent thermoregulatory behavioral motivation elicited by dynamic cooling, was observed in the dorsal medial cortex.  ...  Krout, and P. Puppe for technical assistance. A preliminary report of this work was presented at the 2004 Meeting of the Society for Neuroscience.  ... 
doi:10.1152/ajpregu.00123.2005 pmid:15805097 fatcat:wkz4ewmu7vgxbk5vg26t6imhsm

Convergence of Action, Reaction, and Perception via Neural Oscillations in Dynamic Interaction with External Surroundings [chapter]

Daya Shankar Gupta, Silmar Teixeira
2018 Cognitive and Computational Neuroscience - Principles, Algorithms and Applications  
These mechanisms play key roles in processing information during the interaction of the brain with the physical surroundings.  ...  There has been a considerable interest in the role of time-dimension in functions of the brain, which has been limited to time perception and timing of behavior.  ...  This is supported by imaging studies done in humans, which showed that the posterior parietal areas and premotor areas became active during action-observation and imitation [12, 13] .  ... 
doi:10.5772/intechopen.76397 fatcat:xbzvecm7xbhujdlltpkds6manu

Processing of sub- and supra-second intervals in the primate brain results from the calibration of neuronal oscillators via sensory, motor, and feedback processes

Daya S. Gupta
2014 Frontiers in Psychology  
Oscillator output is processed to produce changes in activities of neurons, named frequency modulator neuron, wired within a separate module, represented by the rate of change in frequency, and frequency  ...  The proposed oscillators include the pacemaker neurons, tonic inputs, and synchronized excitation and inhibition of interconnected neurons.  ...  The author is also grateful to the teachers and students of Camden County College, Blackwood, New Jersey, USA for their support.  ... 
doi:10.3389/fpsyg.2014.00816 pmid:25136321 pmcid:PMC4118025 fatcat:lxftstxltvgc5louchv7wbhwxy

A Neural Chronometry of Memory Recall

Bernhard P. Staresina, Maria Wimber
2019 Trends in Cognitive Sciences  
In this review, we integrate recent developments in the cognitive neuroscience of human memory retrieval, pinpointing the neural chronometry underlying successful recall.  ...  We further highlight the dynamic principles governing the recall process, which include a reversal of perceptual information flows, temporal compression, and theta clocking.  ...  Is mnemonic evidence in the posterior parietal cortex (PPC) fed directly by a hippocampal signal or by the sensory areas in which reinstatement occurs?  ... 
doi:10.1016/j.tics.2019.09.011 pmid:31672429 fatcat:ogduzej4yzepjp5evyo6zgauoe

Models and processes of multisensory cue combination

Robert L Seilheimer, Ari Rosenberg, Dora E Angelaki
2014 Current Opinion in Neurobiology  
In this review, we discuss recent behavioral studies exploring how the brain combines information from different sensory systems, neurophysiological studies relating behavior to neuronal activity, and  ...  Fundamental to our perception of a unified and stable environment is the capacity to combine information across the senses.  ...  Acknowledgements We thank Greg DeAngelis, Eliana Klier, Wei Ji Ma, and Adhira Sunkara for their comments on the manuscript.  ... 
doi:10.1016/j.conb.2013.11.008 pmid:24709599 pmcid:PMC3980502 fatcat:xoucye32kbempimmjx56ishzde
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