Evidence map›Paper›PMID 25471574›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2014

Sleep spindles and intelligence: evidence for a sexual dimorphism.

Péter P Ujma, Boris Nikolai Konrad, Lisa Genzel, Annabell Bleifuss, Péter Simor, Adrián Pótári, János Körmendi, Ferenc Gombos, Axel Steiger, Róbert Bódizs and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 1 pooled it
4.2field-weighted citation impact, top 5% 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

36 citing papers in PubMed, 1 synthesis or guideline pooled it, 92 citations in OpenAlex.

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  17. Longitudinal Analysis of Sleep Spindle Maturation from Childhood through Late Adolescence.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021
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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 at 6 institutions in 4 countries.

Péter P UjmaInstitute of Behavioral Science, Semmelweis University, H-1089 Budapest, Hungary.
Boris Nikolai KonradDonders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, 6525 EN Nijmegen, The Netherlands.
Lisa GenzelCentre for Cognitive and Neural Systems, University of Edinburgh, EH8 9JZ Edinburgh, United Kingdom.
Annabell BleifussMax Planck Institute of Psychiatry, 80804 Munich, Germany.
Péter SimorDepartment of Cognitive Sciences, Budapest University of Technology and Economics, 1111 Budapest, Hungary, Nyírö Gyula Hospital, National Institute of Psychiatry and Addictions, H-1135 Budapest, Hungary.
Adrián PótáriInstitute of Behavioral Science, Semmelweis University, H-1089 Budapest, Hungary.
János KörmendiInstitute of Behavioral Science, Semmelweis University, H-1089 Budapest, Hungary.
Ferenc GombosDepartment of General Psychology, Pázmány Péter Catholic University, H-1088 Budapest, Hungary, and.
Axel SteigerMax Planck Institute of Psychiatry, 80804 Munich, Germany.
Róbert BódizsInstitute of Behavioral Science, Semmelweis University, H-1089 Budapest, Hungary, Department of General Psychology, Pázmány Péter Catholic University, H-1088 Budapest, Hungary, and.ORCID http://orcid.org/0000-0002-7255-0541
Martin DreslerDonders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, 6525 EN Nijmegen, The Netherlands, Max Planck Institute of Psychiatry, 80804 Munich, Germany, dresler@mpipsykl.mpg.de.ORCID http://orcid.org/0000-0001-7441-3818
Semmelweis University · HUMax Planck Institute of Psychiatry · DERadboud University Nijmegen · NLBudapest University of Technology and Economics · HUPázmány Péter Catholic University · HUUniversity of Edinburgh · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Sleep spindles are thalamocortical oscillations in nonrapid eye movement sleep, which play an important role in sleep-related neuroplasticity and offline information processing. Sleep spindle features are stable within and vary between individuals, with, for example, females having a higher number of spindles and higher spindle density than males. Sleep spindles have been associated with learning potential and intelligence; however, the details of this relationship have not been fully clarified yet. In a sample of 160 adult human subjects with a broad IQ range, we investigated the relationship between sleep spindle parameters and intelligence. In females, we found a positive age-corrected association between intelligence and fast sleep spindle amplitude in central and frontal derivations and a positive association between intelligence and slow sleep spindle duration in all except one derivation. In males, a negative association between intelligence and fast spindle density in posterior regions was found. Effects were continuous over the entire IQ range. Our results demonstrate that, although there is an association between sleep spindle parameters and intellectual performance, these effects are more modest than previously reported and mainly present in females. This supports the view that intelligence does not rely on a single neural framework, and stronger neural connectivity manifesting in increased thalamocortical oscillations in sleep is one particular mechanism typical for females but not males.

Indexed as

Sex CharacteristicsAdolescentAdultAgedAgingBrain WavesFemaleHumansIntelligenceIntelligence TestsMaleMiddle AgedSleep StagesYoung Adultintelligencememorysexsleepsleep spindles

Identifiers

PMID25471574
PMCPMC6608484
OpenAlexW2113727237

What OpenQuestion holds

Textmetadata
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.