Evidence map›Paper›PMID 32508305›Full record

ArticleeLife2020

Dreaming with hippocampal damage.

Goffredina Spanò, Gloria Pizzamiglio, Cornelia McCormick, Ian A Clark, Sara De Felice, Thomas D Miller, Jamie O Edgin, Clive R Rosenthal, Eleanor A Maguire

Open access · goldAbstract read
In one paragraph

Article in eLife, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

25 citing papers in PubMed, 46 citations in OpenAlex.

  1. Working Memory Deficits in Hippocampal Amnesia are Associated with Apathy.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026
    Article
  2. "I Can Code": An Innovative Workshop Introducing Students to Coding in the Context of Neuroscience Research.Journal of undergraduate neuroscience education : JUNE : a publication of FUN, Faculty for Undergraduate Neuroscience · 2026
    Article
  3. Diencephalic integrity explains aspects of hippocampal amnesia.Cerebral cortex (New York, N.Y. : 1991) · 2026
    Article
  4. Article
  5. Article
  6. Dreaming conundrum.Journal of sleep research · 2025
    Review
  7. Review
  8. Article
  9. New strategies for the cognitive science of dreaming.Trends in cognitive sciences · 2024
    Review
  10. Review
  11. Article
  12. Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 5 institutions in 3 countries.

Goffredina SpanòWellcome Centre for Human Neuroimaging, UCL Queen Square Institute of Neurology, University College London, London, United Kingdom.
Gloria PizzamiglioWellcome Centre for Human Neuroimaging, UCL Queen Square Institute of Neurology, University College London, London, United Kingdom.ORCID 0000-0002-3567-1344
Cornelia McCormickDepartment of Neurodegenerative Diseases and Geriatric Psychiatry, University Hospital Bonn, Bonn, Germany.
Ian A ClarkWellcome Centre for Human Neuroimaging, UCL Queen Square Institute of Neurology, University College London, London, United Kingdom.
Sara De FeliceWellcome Centre for Human Neuroimaging, UCL Queen Square Institute of Neurology, University College London, London, United Kingdom.
Thomas D MillerDepartment of Neurology, Royal Free Hospital, London, United Kingdom.
Jamie O EdginDepartment of Psychology, University of Arizona, Tucson, United States.
Clive R RosenthalNuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom.ORCID 0000-0002-5960-4648
Eleanor A MaguireWellcome Centre for Human Neuroimaging, UCL Queen Square Institute of Neurology, University College London, London, United Kingdom.ORCID 0000-0002-9470-6324
Wellcome Centre for Human Neuroimaging · GBThe Royal Free Hospital · GBUniversity Hospital Bonn · DEUniversity of Arizona · USUniversity of Oxford · GB

Funding

Wellcome Trust 210567/Z/18/Z
6 · The paper itself

Abstract

The hippocampus is linked with both sleep and memory, but there is debate about whether a salient aspect of sleep - dreaming - requires its input. To address this question, we investigated if human patients with focal bilateral hippocampal damage and amnesia engaged in dreaming. We employed a provoked awakening protocol where participants were woken up at various points throughout the night, including during non-rapid eye movement and rapid eye movement sleep, to report their thoughts in that moment. Despite being roused a similar number of times, dream frequency was reduced in the patients compared to control participants, and the few dreams they reported were less episodic-like in nature and lacked content. These results suggest that hippocampal integrity may be necessary for typical dreaming to occur, and aligns dreaming with other hippocampal-dependent processes such as episodic memory that are central to supporting our mental life.

Indexed as

AdultAgedBrain DiseasesCase-Control StudiesDreamsHippocampusHumansMaleMemory DisordersMemory, EpisodicMiddle AgedSleep, REMamnesiadreamingepisodic memoryhippocampushumanneurosciencesleep

Identifiers

PMID32508305
PMCPMC7279885
OpenAlexW3033489794

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.