Evidence map›Paper›PMID 32503215›Full record

ArticleBrain sciences2020

Dream Recall upon Awakening from Non-Rapid Eye Movement Sleep in Older Adults: Electrophysiological Pattern and Qualitative Features.

Serena Scarpelli, Aurora D'Atri, Chiara Bartolacci, Maurizio Gorgoni, Anastasia Mangiaruga, Michele Ferrara, Luigi De Gennaro

Open access · goldAbstract read
In one paragraph

Article in Brain sciences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.9field-weighted citation impact, top 14% 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

19 citing papers in PubMed, 26 citations in OpenAlex.

  1. Article
  2. Article
  3. A dream EEG and mentation database.Nature communications · 2025
    Article
  4. Article
  5. New strategies for the cognitive science of dreaming.Trends in cognitive sciences · 2024
    Review
  6. Review
  7. Dreaming during the COVID-19 pandemic: A narrative review.Neuroscience and biobehavioral reviews · 2022
    Review
  8. The Oneiric Activity during and after the COVID-19 Total Lockdown in Italy: A Longitudinal Study.International journal of environmental research and public health · 2022
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. Dreams, Sleep, and Psychotropic Drugs.Frontiers in neurology · 2020
    Review
  16. Article
  17. Article
  18. Article
  19. Article
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

7 authors at 3 institutions in 1 country.

Serena ScarpelliIRCCS Fondazione Santa Lucia, 00179 Rome, Italy.ORCID 0000-0002-9260-7111
Aurora D'AtriDepartment of Psychology, Sapienza University of Rome, 00185 Rome, Italy.
Chiara BartolacciDepartment of Psychology, Sapienza University of Rome, 00185 Rome, Italy.ORCID 0000-0002-0229-4941
Maurizio GorgoniDepartment of Psychology, Sapienza University of Rome, 00185 Rome, Italy.
Anastasia MangiarugaDepartment of Psychology, Sapienza University of Rome, 00185 Rome, Italy.
Michele FerraraDepartment of Biotechnological and Applied Clinical Sciences, University of L'Aquila, Via Vetoio (Coppito 2), 67100 Coppito (L'Aquila), Italy.ORCID 0000-0003-2304-7576
Luigi De GennaroIRCCS Fondazione Santa Lucia, 00179 Rome, Italy.ORCID 0000-0003-3613-6631
Sapienza University of Rome · ITFondazione Santa Lucia · ITUniversity of L'Aquila · IT

Funding

Fundação Bial 32/16
6 · The paper itself

Abstract

Several findings support the activation hypothesis, positing that cortical arousal promotes dream recall (DR). However, most studies have been carried out on young participants, while the electrophysiological (EEG) correlates of DR in older people are still mostly unknown. We aimed to test the activation hypothesis on 20 elders, focusing on the Non-Rapid Eye Movement (NREM) sleep stage. All the subjects underwent polysomnography, and a dream report was collected upon their awakening from NREM sleep. Nine subjects were recallers (RECs) and 11 were non-RECs (NRECs). The delta and beta EEG activity of the last 5 min and the total NREM sleep was calculated by Fast Fourier Transform. Statistical comparisons (RECs vs. NRECs) revealed no differences in the last 5 min of sleep. Significant differences were found in the total NREM sleep: the RECs showed lower delta power over the parietal areas than the NRECs. Consistently, statistical comparisons on the activation index (delta/beta power) revealed that RECs showed a higher level of arousal in the fronto-temporal and parieto-occipital regions than NRECs. Both visual vividness and dream length are positively related to the level of activation. Overall, our results are consistent with the view that dreaming and the storage of oneiric contents depend on the level of arousal during sleep, highlighting a crucial role of the temporo-parietal-occipital zone.

Indexed as

activation hypothesisbetadeltadream recalldream reportEEGNREM sleepolder adults

Identifiers

PMID32503215
PMCPMC7349242
OpenAlexW3033930465

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.