Evidence map›Paper›PMID 22169947›Full record

Trial reportNeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology2012

Stimulation of the noradrenergic system during memory formation impairs extinction learning but not the disruption of reconsolidation.

Marieke Soeter, Merel Kindt

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
68citing 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

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

  1. Pooled it
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  4. Alpha-2 Adrenoreceptor Antagonist Yohimbine Potentiates Consolidation of Conditioned Fear.The international journal of neuropsychopharmacology · 2022
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  7. Acute stress leaves fear generalization in healthy individuals intact.Cognitive, affective & behavioral neuroscience · 2021
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  10. Prazosin during threat discrimination boosts memory of the safe stimulus.Learning & memory (Cold Spring Harbor, N.Y.) · 2017
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  19. Review
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8 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

2 authors.

Marieke SoeterDepartment of Clinical Psychology, University of Amsterdam, Amsterdam, The Netherlands.
Merel Kindt

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The noradrenergic system plays a critical role in the 'consolidation' of emotional memory. If we are to target 'reconsolidation' in patients with anxiety disorders, the noradrenergic strengthening of fear memory should not impair the disruption of reconsolidation. In Experiment I, we addressed this issue using a differential fear conditioning procedure allowing selective reactivation of one of two fear associations. First, we strengthened fear memory by administering an α(2)-adrenergic receptor antagonist (ie, yohimbine HCl; double-blind placebo-controlled study) 30 min before acquisition (time for peak value yohimbine HCl <1 h). Next, the reconsolidation of one of the fear associations was manipulated by administering a β-adrenergic receptor antagonist (ie, propranolol HCl) 90 min before its selective reactivation (time for peak value propranolol HCl <2 h). In Experiment II, we administered propranolol HCl after reactivation of the memory to rule out a possible effect of the pharmacological manipulation on the memory retrieval itself. The excessive release of noradrenaline during memory formation not only delayed the process of extinction 48 h later, but also triggered broader fear generalization. Yet, the β-adrenergic receptor blocker during reconsolidation selectively 'neutralized' the fear-arousing aspects of the noradrenergic-strengthened memory and undermined the generalization of fear. We observed a similar reduction in fear responding when propranolol HCl was administered after reactivation of the memory. The present findings demonstrate the involvement of noradrenergic modulation in the formation as well as generalization of human fear memory. Given that the noradrenergic strengthening of fear memory impaired extinction learning but not the disruption of reconsolidation, our findings may have implications for the treatment of anxiety disorders.

Indexed as

AdolescentAdrenergic alpha-2 Receptor AntagonistsAdrenergic beta-AntagonistsAdultAnalysis of VarianceBlood PressureConditioning, ClassicalDouble-Blind MethodElectric StimulationExtinction, PsychologicalFearFemaleGalvanic Skin ResponseHumansMaleMemory DisordersAdrenergic alpha-2 Receptor AntagonistsAdrenergic beta-AntagonistsNorepinephrinePropranololSalivary alpha-AmylasesYohimbine

Identifiers

PMID22169947
PMCPMC3306881

What OpenQuestion holds

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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.