Evidence map›Paper›PMID 29080714›Full record

ArticleNeuroImage2018

Hippocampal morphology mediates biased memories of chronic pain.

Sara E Berger, Étienne Vachon-Presseau, Taha B Abdullah, Alex T Baria, Thomas J Schnitzer, A Vania Apkarian

Open access · hybridAbstract read
In one paragraph

Article in NeuroImage, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
4.0field-weighted citation impact, top 6% 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

32 citing papers in PubMed, 56 citations in OpenAlex.

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  16. Article
  17. Brain mechanisms of chronic pain: critical role of translational approach.Translational research : the journal of laboratory and clinical medicine · 2021
    Review
  18. Article
  19. Brain Imaging Biomarkers for Chronic Pain.Frontiers in neurology · 2021
    Review
  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

6 authors at 1 institution in 1 country.

Sara E BergerDepartment of Physiology, Northwestern University Feinberg School of Medicine, 303 E Chicago Ave, Chicago, IL 60611, USA; Department of Healthcare and Life Sciences, IBM Thomas J. Watson Research Center, 1101 Kitchawan Rd, Yorktown Heights, NY 10598, USA.
Étienne Vachon-PresseauDepartment of Physiology, Northwestern University Feinberg School of Medicine, 303 E Chicago Ave, Chicago, IL 60611, USA.
Taha B AbdullahDepartment of Physiology, Northwestern University Feinberg School of Medicine, 303 E Chicago Ave, Chicago, IL 60611, USA.
Alex T BariaDepartment of Physiology, Northwestern University Feinberg School of Medicine, 303 E Chicago Ave, Chicago, IL 60611, USA.
Thomas J SchnitzerDepartment of Physical Medicine and Rehabilitation, Northwestern University Feinberg School of Medicine, 710 N Lake Shore Drive, Room 1020, Chicago, IL 60611, USA; Department of Internal Medicine/Rheumatology, Northwestern University Feinberg School of Medicine, 710 N Lake Shore Drive, Room 1020, Chicago, IL 60611, USA.
A Vania ApkarianDepartment of Physiology, Northwestern University Feinberg School of Medicine, 303 E Chicago Ave, Chicago, IL 60611, USA; Department of Anesthesia, Northwestern University Feinberg School of Medicine, 303 E Chicago Ave, Chicago, IL 60611, USA; Department of Physical Medicine and Rehabilitation, Northwestern University Feinberg School of Medicine, 710 N Lake Shore Drive, Room 1020, Chicago, IL 60611, USA. Electronic address: a-apkarian@northwestern.edu.
Northwestern University · US

Funding

Brain mechanisms for clinical placebo in chronic painR01AT007987 · NCCIH · NORTHWESTERN UNIVERSITY AT CHICAGO · PI APKARIAN, APKAR VANIA · 2013 to 2017
$3.4M
CIHR 301236NCCIH NIH HHS R01 AT007987
6 · The paper itself

Abstract

Experiences and memories are often mismatched. While multiple studies have investigated psychological underpinnings of recall error with respect to emotional events, the neurobiological mechanisms underlying the divergence between experiences and memories remain relatively unexplored in the domain of chronic pain. Here we examined the discrepancy between experienced chronic low back pain (CBP) intensity (twice daily ratings) and remembered pain intensity (n = 48 subjects) relative to psychometric properties, hippocampus morphology, memory capabilities, and personality traits related to reward. 77% of CBP patients exaggerated remembered pain, which depended on their strongest experienced pain and their most recent mood rating. This bias persisted over nearly 1 year and was related to reward memory bias and loss aversion. Shape displacement of a specific region in the left posterior hippocampus mediated personality effects on pain memory bias, predicted pain memory bias in a validation CBP group (n = 21), and accounted for 55% of the variance of pain memory bias. In two independent groups (n = 20/group), morphology of this region was stable over time and unperturbed by the development of chronic pain. These results imply that a localized hippocampal circuit, and personality traits associated with reward processing, largely determine exaggeration of daily pain experiences in chronic pain patients.

Indexed as

RewardAdultChronic PainHippocampusHumansLow Back PainMagnetic Resonance ImagingMental RecallNeuroimagingPain PerceptionPersonalityChronic painHippocampusMemoryPeak-end ruleShape displacement

Identifiers

PMID29080714
PMCPMC5813825
OpenAlexW2767499064

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.