Cited by 446Pain Management and Placebo EffectNeurotransmitter Receptor Influence on BehaviorTranscranial Magnetic Stimulation Studies

The DOI matches its Crossref record; 136 of the 137 references it cites were found in a registry or an index.

How Placebos Change the Patient's Brain

Open access
Benedetti, Fabrizio, Carlino, Elisa, Pollo, Antonella·2011·Neuropsychopharmacology

Abstract

Although placebos have long been considered a nuisance in clinical research, today they represent an active and productive field of research and, because of the involvement of many mechanisms, the study of the placebo effect can actually be viewed as a melting pot of concepts and ideas for neuroscience. Indeed, there exists not a single but many placebo effects, with different mechanisms and in different systems, medical conditions, and therapeutic interventions. For example, brain mechanisms of expectation, anxiety, and reward are all involved, as well as a variety of learning phenomena, such as Pavlovian conditioning, cognitive, and social learning. There is also some experimental evidence of different genetic variants in placebo responsiveness. The most productive models to better understand the neurobiology of the placebo effect are pain and Parkinson's disease. In these medical conditions, the neural networks that are involved have been identified: that is, the opioidergic-cholecystokinergic-dopaminergic modulatory network in pain and part of the basal ganglia circuitry in Parkinson's disease. Important clinical implications emerge from these recent advances in placebo research. First, as the placebo effect is basically a psychosocial context effect, these data indicate that different social stimuli, such as words and rituals of the therapeutic act, may change the chemistry and circuitry of the patient's brain. Second, the mechanisms that are activated by placebos are the same as those activated by drugs, which suggests a cognitive/affective interference with drug action. Third, if prefrontal functioning is impaired, placebo responses are reduced or totally lacking, as occurs in dementia of the Alzheimer's type.

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  1. Alvarez-Buyalla R, Segura ET, Alvarez-Buyalla ER (1961). Participation of the hypophysis in the conditioned reflex which reproduces the hypoglycemic effect of insulin. Acta Physiol Lat Am 11: 113–119.

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Metadata

Authors
Benedetti, F., Carlino, E., & Pollo, A.
Affiliations
University of Turin (IT)
Corresponding author
Benedetti, Fabrizio
Venue
Neuropsychopharmacology
Published
2010-06-30
Volume
36
Issue
1
Pages
339-354
ISSN
  • 0893-133X (ISSN-L)
  • 1740-634X
OpenAlex
W2019039429
Cited by
446
References
137
Citations by year
2026: 20 · 2025: 33 · 2024: 24 · 2023: 28 · 2022: 22 · 2021: 27 · 2020: 25 · 2019: 38 · 2018: 57 · 2017: 19 · 2016: 25 · 2015: 26 · 2014: 26 · 2013: 30 · 2012: 25
FWCI
1.77
Type
journal article
Language
en
Open access
Locations
  • Neuropsychopharmacology (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Institutional Research Information System University of Turin (University of Turin) (submittedVersion, other-oa)
Funders
  • Compagnia di San Paolo
  • Volkswagen Foundation
  • Regione Piemonte
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Pain Management and Placebo Effect
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Neurology › Transcranial Magnetic Stimulation Studies
Keywords
placebo effect, expectations, anxiety, reward, classical conditioning, social learning, cognitive learning, genetic variants, pain, Parkinson's disease, basal ganglia, drug interactions, prefrontal cortex, Alzheimer's disease, dementia, healing rituals
MeSH terms
Affect, Animals, Brain, Brain Chemistry, Cognition, Humans, Mental Processes, Neural Pathways, Pain, Parkinson Disease, Placebos, Placebo Effect

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