Evidence map›Paper›PMID 24800897›Full record

ArticlePsychopharmacology2014

Effects of oxycodone on brain responses to emotional images.

Margaret C Wardle, Daniel A Fitzgerald, Michael Angstadt, Christine A Rabinak, Harriet de Wit, K Luan Phan

Open access · greenAbstract read
In one paragraph

Article in Psychopharmacology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 2 pooled it
0.5field-weighted citation impact, top 37% 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

10 citing papers in PubMed, 2 syntheses or guidelines pooled it, 18 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Observational
  5. Article
  6. Article
  7. Article
  8. Opioid system and human emotions.British journal of pharmacology · 2018
    Review
  9. Article
  10. 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

6 authors at 3 institutions in 1 country.

Margaret C WardleDepartment of Psychiatry and Behavioral Neuroscience, University of Chicago, 5841 S. Maryland Ave., MC 3077, Chicago, IL, 60637, USA, Margaret.C.Wardle@uth.tmc.edu.
Daniel A Fitzgerald
Michael Angstadt
Christine A Rabinak
Harriet de Wit
K Luan Phan
University of Michigan–Ann Arbor · USUniversity of Chicago · USUniversity of Illinois Chicago · US

Funding

Functional Neuroimaging of Opioid Effects on Affective ExperienceR03DA024197 · NIDA · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI PHAN, KINH LUAN · 2007 to 2007
$228k
NIDA NIH HHS R03 DA024197NIDA NIH HHS R03DA024197
6 · The paper itself

Abstract

rationaleEvidence from animal and human studies suggests that opiate drugs decrease emotional responses to negative stimuli and increase responses to positive stimuli. Such emotional effects may motivate misuse of oxycodone (OXY), a widely abused opiate. Yet, we know little about how OXY affects neural circuits underlying emotional processing in humans.

objectiveWe examined effects of OXY on brain activity during presentation of positive and negative visual emotional stimuli. We predicted that OXY would decrease amygdala activity to negative stimuli and increase ventral striatum (VS) activity to positive stimuli. Secondarily, we examined the effects of OXY on other emotional network regions on an exploratory basis.

methodsIn a three-session study, healthy adults (N = 17) received placebo, 10 and 20 mg OXY under counterbalanced, double-blind conditions. At each session, participants completed subjective and cardiovascular measures and underwent functional MRI (fMRI) scanning while completing two emotional response tasks.

resultsOur emotional tasks reliably activated emotional network areas. OXY produced subjective effects but did not alter either behavioral responses to emotional stimuli or activity in our primary areas of interest. OXY did decrease right medial orbitofrontal cortex (MOFC) responses to happy faces.

conclusionsContrary to our expectations, OXY did not affect behavioral or neural responses to emotional stimuli in our primary areas of interest. Further, the effects of OXY in the MOFC would be more consistent with a decrease in value for happy faces. This may indicate that healthy adults do not receive emotional benefits from opiates, or the pharmacological actions of OXY differ from other opiates.

Indexed as

AdultAnalgesics, OpioidBrain MappingDouble-Blind MethodEmotionsFemaleFrontal LobeHumansMagnetic Resonance ImagingMaleOxycodoneAnalgesics, OpioidOxycodone

Identifiers

PMID24800897
PMCPMC6720110
OpenAlexW2011777748

What OpenQuestion holds

Textmetadata
LicenceTDM
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.