Evidence map›Paper›PMID 33904411›Full record

ArticleeLife2021

Neural effects of propofol-induced unconsciousness and its reversal using thalamic stimulation.

André M Bastos, Jacob A Donoghue, Scott L Brincat, Meredith Mahnke, Jorge Yanar, Josefina Correa, Ayan S Waite, Mikael Lundqvist, Jefferson Roy, Emery N Brown and 1 more

Abstract read
In one paragraph

Article in eLife, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 101 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
101citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

101 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  13. A two-system theory of sensory-evoked brain responses.Brain : a journal of neurology · 2026
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41 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors.

André M Bastos *The Picower Institute for Learning and Memory and Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, United States.ORCID 0000-0003-1804-4418
Jacob A Donoghue *The Picower Institute for Learning and Memory and Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, United States.
Scott L BrincatThe Picower Institute for Learning and Memory and Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, United States.
Meredith MahnkeThe Picower Institute for Learning and Memory and Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, United States.
Jorge YanarThe Picower Institute for Learning and Memory and Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, United States.
Josefina CorreaThe Picower Institute for Learning and Memory and Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, United States.ORCID 0000-0002-5721-5024
Ayan S WaiteThe Picower Institute for Learning and Memory and Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, United States.
Mikael LundqvistThe Picower Institute for Learning and Memory and Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, United States.
Jefferson RoyThe Picower Institute for Learning and Memory and Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, United States.
Emery N Brown *The Picower Institute for Learning and Memory and Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, United States.ORCID 0000-0003-2668-7819
Earl K Miller *The Picower Institute for Learning and Memory and Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, United States.ORCID 0000-0002-0582-6958

Funding

Project 4: Mathematical Modeling Studies of Anesthetic ActionP01GM118269 · NIGMS · MASSACHUSETTS GENERAL HOSPITAL · PI KOPELL, NANCY · 2017 to 2021
$9.0M
Thalamocortical Dynamics and ConsciousnessR01MH115592 · NIMH · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI BROWN, EMERY N, MILLER, EARL K · 2017 to 2021
$2.0M
Testing the Mechanisms, Layers, and Frequencies of Prediction Encoding and its ViolationR00MH116100 · NIMH · VANDERBILT UNIVERSITY · PI BASTOS, ANDRE MORAES · 2021 to 2023
$729k
Testing the Mechanisms, Layers, and Frequencies of Prediction Encoding and its ViolationK99MH116100 · NIMH · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI BASTOS, ANDRE MORAES · 2018 to 2020
$328k
NIGMS NIH HHS P01 GM118269NIMH NIH HHS K99 MH116100NIMH NIH HHS R00 MH116100NIMH NIH HHS R01 MH115592
6 · The paper itself

Abstract

The specific circuit mechanisms through which anesthetics induce unconsciousness have not been completely characterized. We recorded neural activity from the frontal, parietal, and temporal cortices and thalamus while maintaining unconsciousness in non-human primates (NHPs) with the anesthetic propofol. Unconsciousness was marked by slow frequency (~1 Hz) oscillations in local field potentials, entrainment of local spiking to Up states alternating with Down states of little or no spiking activity, and decreased coherence in frequencies above 4 Hz. Thalamic stimulation 'awakened' anesthetized NHPs and reversed the electrophysiologic features of unconsciousness. Unconsciousness is linked to cortical and thalamic slow frequency synchrony coupled with decreased spiking, and loss of higher-frequency dynamics. This may disrupt cortical communication/integration.

Indexed as

Anesthetics, IntravenousAnimalsCerebral CortexFemaleHypnotics and SedativesMacaca mulattaMalePropofolRecovery of FunctionThalamusUnconsciousnessAnesthetics, IntravenousHypnotics and SedativesPropofolconsciousnesscortexgeneral anesthesianeural oscillationsneurosciencerhesus macaquethalamus

Identifiers

PMID33904411
PMCPMC8079153

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.