Evidence map›Paper›PMID 28182526›Full record

ArticlePsychological science2017

Hippocampal Processing of Ambiguity Enhances Fear Memory.

Ugwechi Amadi, Seh Hong Lim, Elizabeth Liu, Michael V Baratta, Ki A Goosens

Abstract read
In one paragraph

Article in Psychological science, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing 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

7 citing papers in PubMed.

  1. Article
  2. Neural substrates of appetitive and aversive prediction error.Neuroscience and biobehavioral reviews · 2021
    Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
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

5 authors.

Ugwechi AmadiMcGovern Institute for Brain Research and the Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology.
Seh Hong LimMcGovern Institute for Brain Research and the Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology.
Elizabeth LiuMcGovern Institute for Brain Research and the Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology.
Michael V BarattaMcGovern Institute for Brain Research and the Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology.
Ki A GoosensMcGovern Institute for Brain Research and the Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology.

Funding

Opposing Effects of Chronic Stress on Amygdala and HippocampusR01MH084966 · NIMH · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI GOOSENS, KI ANN · 2009 to 2013
$2.0M
NIMH NIH HHS R01 MH084966
6 · The paper itself

Abstract

Despite the ubiquitous use of Pavlovian fear conditioning as a model for fear learning, the highly predictable conditions used in the laboratory do not resemble real-world conditions, in which dangerous situations can lead to unpleasant outcomes in unpredictable ways. In the current experiments, we varied the timing of aversive events after predictive cues in rodents and discovered that temporal ambiguity of aversive events greatly enhances fear. During fear conditioning with unpredictably timed aversive events, pharmacological inactivation of the dorsal hippocampus or optogenetic silencing of cornu ammonis 1 cells during aversive negative prediction errors prevented this enhancement of fear without affecting fear learning for predictable events. Dorsal hippocampal inactivation also prevented ambiguity-related enhancement of fear during auditory fear conditioning under a partial-reinforcement schedule. These results reveal that information about the timing and occurrence of aversive events is rapidly acquired and that unexpectedly timed or omitted aversive events generate hippocampal signals to enhance fear learning.

Indexed as

Reinforcement, PsychologyAnimalsBehavior, AnimalConditioning, ClassicalFearHippocampusHumansMaleMemoryOptogeneticsRatsRats, Long-Evansambiguityhippocampusmemoryoptogeneticspartial reinforcementPavlovian fear conditioningphotoinhibitionsilencingtiming

Identifiers

PMID28182526
PMCPMC5308550

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.