Evidence map›Paper›PMID 31604814›Full record

Trial reporteNeuro

Closed-Loop Acoustic Stimulation Enhances Sleep Oscillations But Not Memory Performance.

Simon Henin, Helen Borges, Anita Shankar, Cansu Sarac, Lucia Melloni, Daniel Friedman, Adeen Flinker, Lucas C Parra, Gyorgy Buzsaki, Orrin Devinsky and 1 more

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in eNeuro. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

39 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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  8. Auditory-evoked changes in slow oscillations and spindles correlate with memory consolidation in children with epilepsy and controls.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2026
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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

11 authors.

Simon HeninNYU Comprehensive Epilepsy Center, New York, New York 10016 Anli.liu@nyulangone.org simon.henin@nyulangone.org.ORCID 0000-0003-0997-3266
Helen BorgesNYU Comprehensive Epilepsy Center, New York, New York 10016.
Anita ShankarNYU Comprehensive Epilepsy Center, New York, New York 10016.
Cansu SaracNYU Comprehensive Epilepsy Center, New York, New York 10016.
Lucia MelloniNYU Comprehensive Epilepsy Center, New York, New York 10016.ORCID 0000-0001-8743-5071
Daniel FriedmanNYU Comprehensive Epilepsy Center, New York, New York 10016.ORCID 0000-0003-1068-1797
Adeen FlinkerNYU Comprehensive Epilepsy Center, New York, New York 10016.ORCID 0000-0003-1247-1283
Lucas C ParraDepartment of Biomedical Engineering, City College of New York, New York, New York 10031.ORCID 0000-0003-4667-816X
Gyorgy BuzsakiNew York University Langone Health, New York, NY 10016.ORCID 0000-0002-3100-4800
Orrin DevinskyNYU Comprehensive Epilepsy Center, New York, New York 10016.ORCID 0000-0003-0044-4632
Anli LiuNYU Comprehensive Epilepsy Center, New York, New York 10016 Anli.liu@nyulangone.org simon.henin@nyulangone.org.ORCID 0000-0002-1118-981X

Funding

Brain rhythms-assisted memory enhancementR01MH107396 · NIMH · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI BUZSAKI, GYORGY, DEVINSKY, ORRIN · 2015 to 2019
$3.3M
Mechanisms of disrupted memory encoding in epilepsy patients - Resubmission - 1K23NS104252 · NINDS · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI LIU, ANLI A · 2018 to 2022
$1.0M
NIMH NIH HHS R01 MH107396NINDS NIH HHS K23 NS104252
6 · The paper itself

Abstract

Slow oscillations and spindle activity during non-rapid eye movement sleep have been implicated in memory consolidation. Closed-loop acoustic stimulation has previously been shown to enhance slow oscillations and spindle activity during sleep and improve verbal associative memory. We assessed the effect of closed-loop acoustic stimulation during a daytime nap on a virtual reality spatial navigation task in 12 healthy human subjects in a randomized within-subject crossover design. We show robust enhancement of slow oscillation and spindle activity during sleep. However, no effects on behavioral performance were observed when comparing real versus sham stimulation. To explore whether memory enhancement effects were task specific and dependent on nocturnal sleep, in a second experiment with 19 healthy subjects, we aimed to replicate a previous study that used closed-loop acoustic stimulation to enhance memory for word pairs. The methods used were as close as possible to those used in the original study, except that we used a double-blind protocol, in which both subject and experimenter were unaware of the test condition. Again, we successfully enhanced slow oscillation and spindle power, but again did not strengthen associative memory performance with stimulation. We conclude that enhancement of sleep oscillations may be insufficient to enhance memory performance in spatial navigation or verbal association tasks, and provide possible explanations for lack of behavioral replication.

Indexed as

Acoustic StimulationAdultBrainBrain WavesCross-Over StudiesDouble-Blind MethodElectroencephalographyFemaleHumansMaleMemoryMemory ConsolidationSleepYoung Adultacoustic stimulationdeclarative memorymemoryoscillationssleepspindles

Identifiers

PMID31604814
PMCPMC6831893

What OpenQuestion holds

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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.