Evidence map›Paper›PMID 27066274›Full record

ArticleNeural plasticity2016

Parietal Fast Sleep Spindle Density Decrease in Alzheimer's Disease and Amnesic Mild Cognitive Impairment.

Maurizio Gorgoni, Giulia Lauri, Ilaria Truglia, Susanna Cordone, Simone Sarasso, Serena Scarpelli, Anastasia Mangiaruga, Aurora D'Atri, Daniela Tempesta, Michele Ferrara and 3 more

Open access · goldAbstract read
In one paragraph

Article in Neural plasticity, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 90 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
90citing papers in PubMed, 5 pooled it
5.7field-weighted citation impact, top 3% 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

90 citing papers in PubMed, 5 syntheses or guidelines pooled it, 153 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Acoustic enhancement of sleep slow oscillations in mild cognitive impairment.Annals of clinical and translational neurology · 2019
    Trial
  7. Article
  8. Review
  9. Article
  10. Implication of the thalamus in sleep alterations observed in Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Review
  11. Long-term forgetting, sleep, and tau in autosomal-dominant Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Contextualizing Caregiver Burden in Mild Cognitive Impairment: A Dyadic Perspective.International journal of environmental research and public health · 2025
    Article
  19. Observational
  20. Slow wave synchrony during NREM sleep tracks cognitive impairment in prodromal Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article

30 more citing papers are in PubMed but not listed here.

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

13 authors at 5 institutions in 1 country.

Maurizio GorgoniDepartment of Psychology, "Sapienza" University of Rome, 00185 Rome, Italy.
Giulia LauriDepartment of Psychology, "Sapienza" University of Rome, 00185 Rome, Italy.
Ilaria TrugliaDepartment of Psychology, "Sapienza" University of Rome, 00185 Rome, Italy.
Susanna CordoneDepartment of Physiology and Pharmacology, "Sapienza" University of Rome, 00185 Rome, Italy.
Simone SarassoDepartment of Biomedical and Clinical Sciences "Luigi Sacco", University of Milan, 20157 Milan, Italy.
Serena ScarpelliDepartment of Psychology, "Sapienza" University of Rome, 00185 Rome, Italy.
Anastasia MangiarugaDepartment of Psychology, "Sapienza" University of Rome, 00185 Rome, Italy.
Aurora D'AtriDepartment of Psychology, "Sapienza" University of Rome, 00185 Rome, Italy.
Daniela TempestaDepartment of Life, Health and Environmental Sciences, University of L'Aquila, 67100 L'Aquila, Italy.
Michele FerraraDepartment of Biotechnological and Applied Clinical Sciences, University of L'Aquila, 67100 Coppito, Italy.
Camillo MarraInstitute of Neurology, Catholic University of The Sacred Heart, 00168 Rome, Italy.
Paolo Maria RossiniInstitute of Neurology, Catholic University of The Sacred Heart, 00168 Rome, Italy; IRCCS San Raffaele Pisana, 00163 Rome, Italy.
Luigi De GennaroDepartment of Psychology, "Sapienza" University of Rome, 00185 Rome, Italy.
Sapienza University of Rome · ITUniversity of L'Aquila · ITIstituto di Ricovero e Cura a Carattere Scientifico San RaffaeleLuigi Sacco Hospital · ITUniversità Cattolica del Sacro Cuore · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Several studies have identified two types of sleep spindles: fast (13-15 Hz) centroparietal and slow (11-13 Hz) frontal spindles. Alterations in spindle activity have been observed in Alzheimer's disease (AD) and Mild Cognitive Impairment (MCI). Only few studies have separately assessed fast and slow spindles in these patients showing a reduction of fast spindle count, but the possible local specificity of this phenomenon and its relation to cognitive decline severity are not clear. Moreover, fast and slow spindle density have never been assessed in AD/MCI. We have assessed fast and slow spindles in 15 AD patients, 15 amnesic MCI patients, and 15 healthy elderly controls (HC). Participants underwent baseline polysomnographic recording (19 cortical derivations). Spindles during nonrapid eye movements sleep were automatically detected, and spindle densities of the three groups were compared in the derivations where fast and slow spindles exhibited their maximum expression (parietal and frontal, resp.). AD and MCI patients showed a significant parietal fast spindle density decrease, positively correlated with Minimental State Examination scores. Our results suggest that AD-related changes in spindle density are specific for frequency and location, are related to cognitive decline severity, and may have an early onset in the pathology development.

Indexed as

AgedAlzheimer DiseaseAmnesiaAttentionBrainBrain WavesCognitionCognitive DysfunctionElectroencephalographyFemaleHumansMaleNeuropsychological TestsSleep

Identifiers

PMID27066274
PMCPMC4811201
OpenAlexW2297783832

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.