Evidence map›Paper›PMID 30911568›Full record

ArticleAnnals of clinical and translational neurology2019

Cortical activation during sleep predicts dream experience in narcolepsy.

Aurora D'Atri, Serena Scarpelli, Cinzia Schiappa, Fabio Pizza, Stefano Vandi, Michele Ferrara, Carlo Cipolli, Giuseppe Plazzi, Luigi De Gennaro

Open access · goldAbstract read
In one paragraph

Article in Annals of clinical and translational neurology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.2field-weighted citation impact, top 13% 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

18 citing papers in PubMed, 27 citations in OpenAlex.

  1. Article
  2. A dream EEG and mentation database.Nature communications · 2025
    Article
  3. Article
  4. Article
  5. Review
  6. The vision of dreams: from ontogeny to dream engineering in blindness.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2022
    Review
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Mental Sleep Activity and Disturbing Dreams in the Lifespan.International journal of environmental research and public health · 2019
    Review
  18. 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

9 authors at 4 institutions in 1 country.

Aurora D'AtriDepartment of Psychology University of Rome "Sapienza" Rome Italy.
Serena ScarpelliDepartment of Psychology University of Rome "Sapienza" Rome Italy.
Cinzia SchiappaDepartment of Psychology University of Rome "Sapienza" Rome Italy.
Fabio PizzaDepartment of Biomedical and Neuromotor Sciences (DIBINEM) University of Bologna Bologna Italy.
Stefano VandiDepartment of Biomedical and Neuromotor Sciences (DIBINEM) University of Bologna Bologna Italy.
Michele FerraraDepartment of Biotechnological and Applied Clinical Sciences University of L'Aquila L'Aquila Italy.
Carlo CipolliDepartment of Specialty Diagnostic and Experimental Medicine (DIMES) University of Bologna Bologna Italy.
Giuseppe PlazziDepartment of Biomedical and Neuromotor Sciences (DIBINEM) University of Bologna Bologna Italy.
Luigi De GennaroDepartment of Psychology University of Rome "Sapienza" Rome Italy.
Sapienza University of Rome · ITIstituti di Ricovero e Cura a Carattere Scientifico · ITUniversity of Bologna · ITUniversity of L'Aquila · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objective: Narcolepsy type 1 widely affects the architecture of sleep with frequent fast transition to REM sleep at both nighttime and daytime sleep onset. The occurrence of repeated sleep onset REM periods over the Multiple Sleep Latency Test offers a unique opportunity to identify EEG patterns predictive of successful dream recall after short periods composed of only REM or NREM sleep. It also permits to disentangle state- from trait-like differences in dream recall, by using a within-subjects design. Methods: A consecutive series of 115 first-diagnosed drug-free adult narcolepsy-type 1 patients underwent Multiple Sleep Latency Tests and were asked after each nap opportunity if they had or had not a dream experience. Scalp EEG power and a specific index of cortical activation (delta/beta power ratio), obtained from naps of 43 patients with both presence and absence of dream recall in the same sleep stage, were compared separately for REM and NREM sleep. Results: Successful dream recall was associated with an increased EEG desynchronization in both REM and NREM over partially overlapping cortical areas. Compared to unsuccessful recall, it showed (1) lower delta power over centro-parietal areas during both stages, (2) higher beta power in the same cortical areas during NREM, and (3) lower values in the delta/beta ratio during NREM in most scalp locations. Interpretation: A more activated electrophysiological milieu in both REM and NREM sleep promotes dream recall, strengthening the notion that the parietal areas are crucial not only in generating dream experience, as shown in brain-damaged patients, but also in the memory processing leading to recall.

Indexed as

AdultCerebral CortexDreamsElectroencephalographyFemaleHumansMaleMental RecallMiddle AgedNarcolepsyPolysomnographySleepSleep, REMSleep StagesSleep Wake Disorders

Identifiers

PMID30911568
PMCPMC6414482
OpenAlexW2914213838

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.