Medical education and distrust modulate the response of insular-cingulate network and ventral striatum in pain diagnosis
Abstract
Healthcare providers often underestimate patients' pain, sometimes even when aware of their reports. This could be the effect of experience reducing sensitivity to others pain, or distrust towards patients' self-evaluations. Across multiple experiments (375 participants), we tested whether senior medical students differed from younger colleagues and lay controls in the way they assess people's pain and take into consideration their feedback. We found that medical training affected the sensitivity to pain faces, an effect shown by the lower ratings and highlighted by a decrease in neural response of the insula and cingulate cortex. Instead, distrust towards the expressions' authenticity affected the processing of feedbacks, by decreasing activity in the ventral striatum whenever patients' self-reports matched participants' evaluations, and by promoting strong reliance on the opinion of other doctors. Overall, our study underscores the multiple processes which might influence the evaluation of others' pain at the early stages of medical career.
Data availability
The behavioral data and script are stored and available at the following link: https://osf.io/qnp6m/The UPDATED (revision1) brain imaging data are stored and available at the following link: https://neurovault.org/collections/9006/
-
Brain networks for pain diagnosis. Differential contribution of medical education and distrust in the appraisal of others' pain.https://identifiers.org/neurovault.collection:9006.
Article and author information
Author details
Funding
SNSF (PP00O1_157424/1)
- Corrado Corradi-Dell'Acqua
The funders had no role in study design, data collection and interpretation, or the decision to submit the work for publication.
Ethics
Human subjects: all subjects read and signed an informed consent prior to taking part to the experiement, thus agreeing that their data could be published under anonimity. They had the time to read and ask for clarification/ information the the researcher conductiong the experiment in case they wanted to.This research was conducted in accordance with the Declaration of Helsinki and was approved by the local ethical committee (Commission Cantonale d'Éthique e de la Recherce [CCER] of Geneva, protocol code: CCER N. 2016-01862).
Copyright
© 2021, Dirupo et al.
This article is distributed under the terms of the Creative Commons Attribution License permitting unrestricted use and redistribution provided that the original author and source are credited.
Metrics
-
- 875
- views
-
- 88
- downloads
-
- 6
- citations
Views, downloads and citations are aggregated across all versions of this paper published by eLife.
Download links
Downloads (link to download the article as PDF)
Open citations (links to open the citations from this article in various online reference manager services)
Cite this article (links to download the citations from this article in formats compatible with various reference manager tools)
Further reading
-
- Neuroscience
When navigating environments with changing rules, human brain circuits flexibly adapt how and where we retain information to help us achieve our immediate goals.
-
- Neuroscience
Cerebellar dysfunction leads to postural instability. Recent work in freely moving rodents has transformed investigations of cerebellar contributions to posture. However, the combined complexity of terrestrial locomotion and the rodent cerebellum motivate new approaches to perturb cerebellar function in simpler vertebrates. Here, we adapted a validated chemogenetic tool (TRPV1/capsaicin) to describe the role of Purkinje cells — the output neurons of the cerebellar cortex — as larval zebrafish swam freely in depth. We achieved both bidirectional control (activation and ablation) of Purkinje cells while performing quantitative high-throughput assessment of posture and locomotion. Activation modified postural control in the pitch (nose-up/nose-down) axis. Similarly, ablations disrupted pitch-axis posture and fin-body coordination responsible for climbs. Postural disruption was more widespread in older larvae, offering a window into emergent roles for the developing cerebellum in the control of posture. Finally, we found that activity in Purkinje cells could individually and collectively encode tilt direction, a key feature of postural control neurons. Our findings delineate an expected role for the cerebellum in postural control and vestibular sensation in larval zebrafish, establishing the validity of TRPV1/capsaicin-mediated perturbations in a simple, genetically tractable vertebrate. Moreover, by comparing the contributions of Purkinje cell ablations to posture in time, we uncover signatures of emerging cerebellar control of posture across early development. This work takes a major step towards understanding an ancestral role of the cerebellum in regulating postural maturation.