Cited by 36Sleep and Wakefulness ResearchSchizophrenia research and treatmentNeural dynamics and brain function

Targeting sleep oscillations to improve memory in schizophrenia

Open access
Manoach, Dara S., Mylonas, Dimitrios, Baxter, Bryan·2020·Schizophrenia Research

Abstract

Although schizophrenia is defined by waking phenomena, a growing literature documents a deficit in sleep spindles, a defining oscillation of stage 2 non-rapid eye movement sleep. Compelling evidence supports an important role for spindles in cognition, and particularly memory. In schizophrenia, although the spindle deficit correlates with impaired sleep-dependent memory consolidation, recent clinical trials find that increasing spindles does not improve memory. This may reflect that sleep-dependent memory consolidation relies not on spindles alone, but also on their precise temporal coordination with cortical slow oscillations and hippocampal sharp-wave ripples. Consequently, interventions to improve memory in schizophrenia must not only increase spindles, but also preserve or enhance slow oscillations, hippocampal ripples and their temporal relations. Because hippocampal ripples and the activity of the thalamic spindle generator are difficult to measure noninvasively, screening potential interventions requires complementary animal and human studies. In this review we (i) propose that sleep oscillations are novel pathophysiological targets for therapy to improve cognition in schizophrenia; (ii) summarize our understanding of how these oscillations interact to consolidate memory; (iii) suggest that a systems neuroscience strategy is essential to selecting and evaluating effective treatments, and illustrate this with findings from clinical trials; and (iv) selectively review the interventional literature relevant to sleep and cognition, covering both pharmacological and noninvasive brain stimulation approaches. We conclude that coordinated sleep oscillations are promising targets for improving cognition in schizophrenia and that effective therapies will need to preserve or enhance sleep oscillatory dynamics and restore function at the network level.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1016/j.schres.2020.01.010

Cites

102 of 102 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Closed-loop auditory stimulation has shown promise with clinical populations including people with schizophrenia, older adults, and children with ADHD.

    “For example, closed-loop auditory stimulation has shown promise with clinical populations including people with schizophrenia [32] older adults [33], and children with ADHD [34].”

    From Sleep and memory consolidation in healthy, neurotypical children, and adults: a summary of systematic reviews and meta-analyses. (2023) · cites this paper as [32]

    In the section on noninvasive brain stimulation during sleep (page unavailable), the review reports promising results for closed-loop auditory stimulation, including in people with mild cognitive impairment. It does not report promising results in people with schizophrenia; instead, it says these methods have seldom been used in other clinical populations. The schizophrenia portion attributed to citation [32] is therefore unsupported. (LLM, conf=0.87)

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 2

  1. Scolnick E, Pan J, 2017 CACNA1I: A Potential Novel Target for Schizophrenia Motivated by Emerging Human genetics. Schizophrenia Bulletin 43(Issue suppl_1), S63.
  2. Sejnowski TJ, Destexhe A, 2000 Why do we sleep? Brain Res 886(1–2), 208– 223. 11119697

Cited by

Sorted by citations

Authors
Manoach, D. S., Mylonas, D., & Baxter, B.
Affiliations
Harvard University (US)
Corresponding author
Manoach, Dara S.
Venue
Schizophrenia Research
Publisher
Elsevier BV
Published
2020-07
Volume
221
Pages
63-70
ISSN
0920-9964 (ISSN-L)
OpenAlex
W3003390330
Cited by
36
References
102
Citations by year
2025: 5 · 2024: 4 · 2023: 8 · 2022: 8 · 2021: 6 · 2020: 5
FWCI
3.63
Type
journal article
Language
en
Open access
Locations
  • Schizophrenia Research (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute of Mental Health
  • National Heart Lung and Blood Institute
  • National Center for Research Resources
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
Keywords
schizophrenia, sleep spindles
MeSH terms
Memory Consolidation, Animals, Electroencephalography, Hippocampus, Humans, Memory, Schizophrenia, Sleep, Sleep Stages

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review