Evidence map›Paper›PMID 38743108›Full record

ReviewPsychopharmacology2025

Neuropsychological mechanisms of observational learning in human placebo effects.

Nandini Raghuraman, Jewel N White, Lakota Watson, Carmen-Édith Belleï-Rodriguez, Roni Shafir, Yang Wang, Luana Colloca

Abstract readReview
In one paragraph

Review in Psychopharmacology, 2025. 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. Article
  3. Article
  4. Article
  5. Article
  6. Placebo and nocebo effect in pain.Handbook of clinical neurology · 2025
    Review
  7. 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.

Nandini RaghuramanDepartment of Pain and Translational Symptom Science, University of Maryland School of Nursing, Baltimore, MD, USA.
Jewel N WhiteDepartment of Pain and Translational Symptom Science, University of Maryland School of Nursing, Baltimore, MD, USA.
Lakota WatsonDepartment of Pain and Translational Symptom Science, University of Maryland School of Nursing, Baltimore, MD, USA.
Carmen-Édith Belleï-RodriguezDepartment of Pain and Translational Symptom Science, University of Maryland School of Nursing, Baltimore, MD, USA.
Roni ShafirDepartment of Pain and Translational Symptom Science, University of Maryland School of Nursing, Baltimore, MD, USA.
Yang WangDepartment of Pain and Translational Symptom Science, University of Maryland School of Nursing, Baltimore, MD, USA.
Luana CollocaDepartment of Pain and Translational Symptom Science, University of Maryland School of Nursing, Baltimore, MD, USA. colloca@umaryland.edu.ORCID http://orcid.org/0000-0002-6503-4709

Funding

NRSA Training CoreTL1TR003100 · NCATS · JOHNS HOPKINS UNIVERSITY · PI SAHA, SOMNATH · 2019 to 2023
$4.5M
Neural correlates of hypoalgesia driven by observationR01AT010333 · NCCIH · UNIVERSITY OF MARYLAND BALTIMORE · PI COLLOCA, LUANA · 2019 to 2023
$3.7M
Neural Mechanisms of Immersive Virtual Reality in Chronic PainR01AT011347 · NCCIH · UNIVERSITY OF MARYLAND BALTIMORE · PI Luana Colloca · 2021 to 2026
$3.2M
Secondary Analysis and Integration of Existing Data Related to Chronic Orofacial Pain and Placebo Effects - Administrative SupplementR21DE032532 · NIDCR · UNIVERSITY OF MARYLAND BALTIMORE · PI COLLOCA, LUANA, DORSEY, SUSAN G · 2022 to 2023
$513k
Institute for Clinical and Translational Research, University of Maryland, Baltimore 5TL1TR003100-05MPowering the State Initiatives Strategic Partnership GrantNCATS NIH HHS TL1 TR003100NCCIH NIH HHS R01 AT010333NCCIH NIH HHS R01 AT011347NIDCR NIH HHS R21 DE032532
6 · The paper itself

Abstract

Scientific evidence indicates that placebo effects are psychoneurobiological events involving the contribution of distinct central nervous systems and peripheral physiological mechanisms that influence pain perception and other symptoms. Placebo effects can occur without formal conditioning and direct prior experience because crucial information can be acquired through observational learning. Observation of benefits in another person results in placebo effects of a magnitude like those induced by directly experiencing an analgesic benefit. Understanding the psychological mechanisms of observationally induced placebo effects is a complex and multifaceted endeavor. While previous reviews have highlighted various frameworks and models to understand these phenomena, the underlying biological mechanisms have been overlooked. We summarize critically current understanding of its behavioral and neural mechanisms. Understanding the neural mechanisms of hypoalgesia driven by observation can serve as a foundation for future development of novel theoretical and methodological approaches and ultimately, applications.

Indexed as

LearningPain PerceptionPlacebo EffectHumansPainConditioningEmpathyExpectancyExpectationsLearningObservationPlacebo

Identifiers

PMID38743108
PMCPMC11561162

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.