Evidence map›Paper›PMID 26314702›Full record

Trial reportHuman brain mapping2015

Disruption of cortical integration during midazolam-induced light sedation.

Peipeng Liang, Han Zhang, Yachao Xu, Wenbin Jia, Yufeng Zang, Kuncheng Li

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in Human brain mapping, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
–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

28 citing papers in PubMed.

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  4. Local and global effects of sedation in resting-state fMRI: a randomized, placebo-controlled comparison between etifoxine and alprazolam.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024
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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

6 authors.

Peipeng LiangDepartment of Radiology, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China.
Han ZhangCenter for Cognition and Brain Disorders, Hangzhou Normal University, Hangzhou, 311121, China.
Yachao XuDepart of Anesthesiology, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China.
Wenbin JiaCenter for Cognition and Brain Disorders, Hangzhou Normal University, Hangzhou, 311121, China.
Yufeng ZangCenter for Cognition and Brain Disorders, Hangzhou Normal University, Hangzhou, 311121, China.
Kuncheng LiDepartment of Radiology, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This work examines the effect of midazolam-induced light sedation on intrinsic functional connectivity of human brain, using a randomized, double-blind, placebo-controlled, cross-over, within-subject design. Fourteen healthy young subjects were enrolled and midazolam (0.03 mg/kg of the participant's body mass, to a maximum of 2.5 mg) or saline were administrated with an interval of one week. Resting-state fMRI was conducted before and after administration for each subject. We focus on two types of networks: sensory related lower-level functional networks and higher-order functions related ones. Independent component analysis (ICA) was used to identify these resting-state functional networks. We hypothesize that the sensory (visual, auditory, and sensorimotor) related networks will be intact under midazolam-induced light sedation while the higher-order (default mode, executive control, salience networks, etc.) networks will be functionally disconnected. It was found that the functional integrity of the lower-level networks was maintained, while that of the higher-level networks was significantly disrupted by light sedation. The within-network connectivity of the two types of networks was differently affected in terms of direction and extent. These findings provide direct evidence that higher-order cognitive functions including memory, attention, executive function, and language were impaired prior to lower-level sensory responses during sedation. Our result also lends support to the information integration model of consciousness.

Indexed as

AdultCerebral CortexConnectomeDouble-Blind MethodFemaleHumansHypnotics and SedativesMaleMental ProcessesMidazolamNerve NetProcedural SedationYoung AdultHypnotics and SedativesMidazolamindependent component analysis (ICA)midazolamresting-state functional MRI (rs-fMRI)sedation

Identifiers

PMID26314702
PMCPMC5049658

What OpenQuestion holds

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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.