Evidence map›Paper›PMID 17823243›Full record

ArticleLearning & memory (Cold Spring Harbor, N.Y.)2007

Genetic background differences and nonassociative effects in mouse trace fear conditioning.

Dani R Smith, Michela Gallagher, Mark E Stanton

Abstract readComparative Study
In one paragraph

Article in Learning & memory (Cold Spring Harbor, N.Y.), 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing 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

34 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Bidirectional Regulation of Cognitive and Anxiety-like Behaviors by Dentate Gyrus Mossy Cells in Male and Female Mice.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021
    Article
  5. Article
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  7. Anterior Cingulate Cortex and Ventral Hippocampal Inputs to the Basolateral Amygdala Selectively Control Generalized Fear.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2019
    Article
  8. Review
  9. Article
  10. Deletion ofBrain and behavior · 2017
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Adult Hippocampal Neurogenesis Modulates Fear Learning through Associative and Nonassociative Mechanisms.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2015
    Article
  16. Article
  17. Trace fear conditioning in mice.Journal of visualized experiments : JoVE · 2014
    Article
  18. Article
  19. Article
  20. 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

3 authors.

Dani R SmithNeurogenetics and Behavior Center, Department of Psychological and Brain Sciences, The Johns Hopkins University, Baltimore, Maryland 21218, USA. daniro@jhu.edu
Michela Gallagher
Mark E Stanton

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Fear conditioning, including variants such as delay and trace conditioning that depend on different neural systems, is widely used to behaviorally characterize genetically altered mice. We present data from three strains of mice, C57/BL6 (C57), 129/SvlmJ (129), and a hybrid strain of the two (F(1) hybrids), trained on various versions of a trace fear-conditioning protocol. The initial version was taken from the literature but included unpaired control groups to assess nonassociative effects on test performance. We observed high levels of nonassociative freezing in both contextual and cued test conditions. In particular, nonassociative freezing in unpaired control groups was equivalent to freezing shown by paired groups in the tests for trace conditioning. A number of pilot studies resulted in a new protocol that yielded strong context conditioning and low levels of nonassociative freezing in all mouse strains. During the trace-CS test in this protocol, freezing in unpaired controls remained low in all strains, and both the C57s and F(1) hybrids showed reliable associative trace fear conditioning. Trace conditioning, however, was not obtained in the 129 mice. Our findings indicate that caution is warranted in interpreting mouse fear-conditioning studies that lack control conditions to address nonassociative effects. They also reveal a final set of parameters that are important for minimizing such nonassociative effects and demonstrate strain differences across performance in mouse contextual and trace fear conditioning.

Indexed as

Acoustic StimulationAnimalsAssociation LearningConditioning, PsychologicalFearHippocampusHybridization, GeneticMaleMiceMice, Inbred C57BLReflex, StartleSpecies Specificity

Identifiers

PMID17823243
PMCPMC1994077

What OpenQuestion holds

Textmetadata
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.