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The associations between spindle characteristics and cognitive ability in a large adolescent birth cohort

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  • Pesonen, Anu-Katriina
  • Ujma, Péter
  • Halonen, Risto
  • Räikkönen, Katri
  • Kuula, Liisa

Abstract

Sleep spindles are EEG oscillations in NREM sleep which are implicated in sleep-related cerebral plasticity. Several studies indicate that sleep spindle characteristics are correlates of general cognitive ability with a possible sexual dimorphism, but most of the literature consists of small studies with heterogeneous results. In order to clarify these findings, we conducted the largest study into this topic (N = 176) in a birth cohort of 17 year old adolescents using all-night polysomnography and two different sleep spindle detectors. We failed to find significant associations between sleep spindle parameters and general cognitive ability. There was no evidence for a sexual dimorphism. Our findings suggest that previous small studies with limited statistical power and probability to sampling error may have detected sporadic associations which were not confirmed in this study. Large studies and meta-analyses, still somewhat uncommon in the quantitative EEG studies of psychological phenotypes, are necessary to evaluate the existing literature.

Suggested Citation

  • Pesonen, Anu-Katriina & Ujma, Péter & Halonen, Risto & Räikkönen, Katri & Kuula, Liisa, 2019. "The associations between spindle characteristics and cognitive ability in a large adolescent birth cohort," Intelligence, Elsevier, vol. 72(C), pages 13-19.
    • Handle: RePEc:eee:intell:v:72:y:2019:i:c:p:13-19
    DOI: 10.1016/j.intell.2018.11.004
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    References listed on IDEAS

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    1. Čukić, Iva & Brett, Caroline E. & Calvin, Catherine M. & Batty, G. David & Deary, Ian J., 2017. "Childhood IQ and survival to 79: Follow-up of 94% of the Scottish Mental Survey 1947," Intelligence, Elsevier, vol. 63(C), pages 45-50.
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