Evidence map›Paper›PMID 26704150›Full record

ArticleHuman brain mapping2016

Dopaminergic system and dream recall: An MRI study in Parkinson's disease patients.

Luigi De Gennaro, Olimpia Lanteri, Fabrizio Piras, Serena Scarpelli, Francesca Assogna, Michele Ferrara, Carlo Caltagirone, Gianfranco Spalletta

Open access · greenAbstract read
In one paragraph

Article in Human brain mapping, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

16 citing papers in PubMed, 43 citations in OpenAlex.

  1. Role of the Amygdala in the Complex Relationship Between Sleep and Anxiety.International journal of molecular sciences · 2026
    Review
  2. Review
  3. Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Mental Sleep Activity and Disturbing Dreams in the Lifespan.International journal of environmental research and public health · 2019
    Review
  14. Review
  15. Narcolepsy and emotional experience: a review of the literature.Behavioral and brain functions : BBF · 2018
    Review
  16. Spotlight on dream recall: the ages of dreams.Nature and science of sleep · 2018
    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

8 authors at 5 institutions in 2 countries.

Luigi De GennaroDepartment of Psychology, University of Rome "Sapienza,", Rome, Italy.
Olimpia LanteriDepartment of Psychology, University of Rome "Sapienza,", Rome, Italy.
Fabrizio PirasDepartment of Clinical and Behavioral Neurology, Santa Lucia Foundation, Rome, Italy.
Serena ScarpelliDepartment of Psychology, University of Rome "Sapienza,", Rome, Italy.
Francesca AssognaDepartment of Clinical and Behavioral Neurology, Santa Lucia Foundation, Rome, Italy.
Michele FerraraDepartment of Life, Health and Environmental Sciences, University of L'aquila, Italy.
Carlo CaltagironeDepartment of Clinical and Behavioral Neurology, Santa Lucia Foundation, Rome, Italy.
Gianfranco SpallettaDepartment of Clinical and Behavioral Neurology, Santa Lucia Foundation, Rome, Italy.
Sapienza University of Rome · ITFondazione Santa Lucia · ITMenninger Clinic · USUniversity of L'Aquila · ITUniversity of Rome Tor Vergata · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We investigated the role of the dopamine system [i.e., subcortical-medial prefrontal cortex (mPFC) network] in dreaming, by studying patients with Parkinson's Disease (PD) as a model of altered dopaminergic transmission. Subcortical volumes and cortical thickness were extracted by 3T-MR images of 27 PD patients and 27 age-matched controls, who were asked to fill out a dream diary upon morning awakening for one week. PD patients do not substantially differ from healthy controls with respect to the sleep, dream, and neuroanatomical measures. Multivariate correlational analyses in PD patients show that dopamine agonist dosage is associated to qualitatively impoverished dreams, as expressed by lower bizarreness and lower emotional load values. Visual vividness (VV) of their dream reports positively correlates with volumes of both the amygdalae and with thickness of the left mPFC. Emotional load also positively correlates with hippocampal volume. Beside the replication of our previous finding on the role of subcortical nuclei in dreaming experience of healthy subjects, this represents the first evidence of a specific role of the amygdala-mPFC dopaminergic network system in dream recall. The association in PD patients between higher dopamine agonist dosages and impoverished dream reports, however, and the significant correlations between VV and mesolimbic regions, however, provide an empirical support to the hypothesis that a dopamine network plays a key role in dream generation. The causal relation is however precluded by the intrinsic limitation of assuming the dopamine agonist dosage as a measure of the hypodopaminergic state in PD. Periodicals, Inc.

Indexed as

AdultAgedAntiparkinson AgentsBrainDopamine AgonistsDreamsEmotionsFemaleHumansMagnetic Resonance ImagingMaleMental RecallMiddle AgedNeuropsychological TestsOrgan SizeParkinson DiseaseAntiparkinson AgentsDopamine Agonistsamygdaladopaminedreamingdream recallhippocampusmedial prefrontal cortexmesolimbic dopaminergic systemMRIsleepVBM

Identifiers

PMID26704150
PMCPMC6867535
OpenAlexW2198267268

What OpenQuestion holds

Textmetadata
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.