Evidence map›Paper›PMID 22710004›Full record

Trial reportNeuroscience letters2012

Using arterial spin labeling perfusion MRI to explore how midazolam produces anterograde amnesia.

Peipeng Liang, Anna Manelis, Xiaonan Liu, Howard J Aizenstein, Ferenc Gyulai, Joseph J Quinlan, Lynne M Reder

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in Neuroscience letters, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.3field-weighted citation impact, top 42% of its field
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

8 citing papers in PubMed, 11 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Trial
  4. Trial
  5. Trial
  6. Review
  7. Midazolam: an essential palliative care drug.Palliative care and social practice · 2020
    Review
  8. Effects of anesthesia on cerebral blood flow, metabolism, and neuroprotection.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2018
    Review
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

7 authors at 4 institutions in 2 countries.

Peipeng LiangDepartment of Radiology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China.
Anna Manelis
Xiaonan Liu
Howard J Aizenstein
Ferenc Gyulai
Joseph J Quinlan
Lynne M Reder
Carnegie Mellon University · USCapital Medical University · CNUniversity of Pittsburgh · USUPMC Presbyterian · US

Funding

COMPUTATIONAL &BEHAVIORAL APPROACHES TO COGNITIONT32MH019983 · NIMH · CARNEGIE-MELLON UNIVERSITY · PI REDER, LYNNE MARIE · 1998 to 2012
$2.6M
EXPLORING THE SAC MODEL OF MEMORYR01MH052808 · NIMH · CARNEGIE-MELLON UNIVERSITY · PI REDER, LYNNE MARIE · 1996 to 2008
$1.5M
NIMH NIH HHS 5R01MH052808NIMH NIH HHS R01 MH052808NIMH NIH HHS T32 MH019983NIMH NIH HHS T32MH019983
6 · The paper itself

Abstract

While our previous work suggests that the midazolam-induced memory impairment results from the inhibition of new association formation, little is known about the neural correlates underlying these effects beyond the effects of GABA agonists on the brain. We used arterial spin-labeling perfusion MRI to measure cerebral blood flow changes associated with the effects of midazolam on ability to learn arbitrary word-pairs. Using a double-blind, within-subject cross-over design, subjects studied word-pairs for a later cued-recall test while they were scanned. Lists of different word-pairs were studied both before and after an injection of either saline or midazolam. As expected, recall was severely impaired under midazolam. The contrast of MRI signal before and after midazolam administration revealed a decrease in CBF in the left dorsolateral prefrontal cortex (DLPFC), left cingulate gyrus and left posterior cingulate gyrus/precuneus. These effects were observed even after controlling for any effect of injection. A strong correlation between the midazolam-induced changes in neural activity and memory performance was found in the left DLPFC. These findings provide converging evidence that this region plays a critical role in the formation of new associations and that low functioning of this region is associated with anterograde amnesia.

Indexed as

Spin LabelsAdolescentAdultAmnesia, AnterogradeBrain MappingCerebral ArteriesCerebral CortexCross-Over StudiesCuesDouble-Blind MethodGABA AgonistsHumansMemoryMental RecallMidazolamVerbal BehaviorGABA AgonistsMidazolamSpin Labels

Identifiers

PMID22710004
PMCPMC3780778
OpenAlexW2093141119

What OpenQuestion holds

Textmetadata
LicenceTDM
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.