About: Sedation Modulates Frontotemporal Predictive Coding Circuits and the Double Surprise Acceleration Effect

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type	http://eprints.org/ontology/ArticleEPrint http://eprints.org/ontology/EPrint Article Academic Article
seeAlso	HTML Summary of #80568 Sedation Modulates Frontotemporal Predictive Coding Circuits and the Double Surprise Acceleration Effect
sameAs	Sedation Modulates Frontotemporal Predictive Coding Circuits and the Double Surprise Acceleration Effect
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http://eprints.org/ontology/hasPublished	Sedation Modulates Frontotemporal Predictive Coding Circuits and the Double Surprise Acceleration Effect (PDF)
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dc:hasVersion	Sedation Modulates Frontotemporal Predictive Coding Circuits and the Double Surprise Acceleration Effect (PDF) Sedation Modulates Frontotemporal Predictive Coding Circuits and the Double Surprise Acceleration Effect (PDF)
Title	Sedation Modulates Frontotemporal Predictive Coding Circuits and the Double Surprise Acceleration Effect
described by	https://demo.openlinksw.com/about/id/entity/https/www.cs.kent.ac.uk/people/staff/akj22/materials/CO644/export_kar_RDFN3.n3
Date	2020-05-19
Creator	Tristan A. Bekinschtein Alberto Aviles Vladimir Litvak Ram Adapa Amirali Shirazibeheshti Adrien J-B. Witon Jose David Lopez L. Li David K. Menon Howard Bowman Jennifer Cooke Karl Friston Srivas Chennu
status	peer reviewed published
Publisher	Oxford University Press
abstract	Two important theories in cognitive neuroscience are predictive coding and the global workspace theory. A key research task is to understand how these two theories relate to one another, and particularly, how the brain transitions from a predictive early state to the eventual engagement of a brain-scale state (the global workspace). To address this question, we present a source-localisation of EEG responses evoked by the local-global task – an experimental paradigm that engages a predictive hierarchy, which encompasses the global workspace. The results of our source reconstruction suggest three-phases of processing. The first phase involves the sensory (here auditory) regions of the superior temporal lobe and predicts sensory regularities over a short timeframe (as per the local effect). The third phase is brain-scale, involving inferior frontal, as well as inferior and superior parietal regions; consistent with a global neuronal workspace (as per the global effect). Crucially, our analysis suggests that there is an intermediate (second) phase, involving modulatory interactions between inferior frontal and superior temporal regions. Furthermore, sedation with propofol reduces modulatory interactions in the second phase. This selective effect is consistent with a predictive coding explanation of sedation, with propofol acting on descending predictions of the precision of prediction errors; thereby constraining access to the global neuronal workspace.
Is Part Of	Cerebral Cortex https://kar.kent.ac.uk/id/repository
Subject	H Social Sciences QP Physiology (Living systems)
list of authors	https://kar.kent.ac.uk/id/eprint/80568#authors
is topic of	https://www.cs.kent.ac.uk/people/staff/akj22/materials/CO644/export_kar_RDFN3.n3
is primary topic of	HTML Summary of #80568 Sedation Modulates Frontotemporal Predictive Coding Circuits and the Double Surprise Acceleration Effect

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