Early adolescent cognitive gains are marked by increased sleep EEG coherence

Tarokh, Leila; Carskadon, Mary A; Achermann, Peter (2014). Early adolescent cognitive gains are marked by increased sleep EEG coherence. PLoS ONE, 9(9), e106847. Public Library of Science 10.1371/journal.pone.0106847

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Although the increases in cognitive capacities of adolescent humans are concurrent with significant cortical restructuring, functional associations between these phenomena are unclear. We examined the association between cortical development, as measured by the sleep EEG, and cognitive performance in a sample of 9/10 year olds followed up 1 to 3 years later. Our cognitive measures included a response inhibition task (Stroop), an executive control task (Trail Making), and a verbal fluency task (FAS). We correlated sleep EEG measures of power and intra-hemispheric coherence at the initial assessment with performance at that assessment. In addition we correlated the rate of change across assessments in sleep EEG measures with the rate of change in performance. We found no correlation between sleep EEG power and performance on cognitive tasks for the initial assessment. In contrast, we found a significant correlation of the rate of change in intra-hemispheric coherence for the sigma band (11 to 16 Hz) with rate of change in performance on the Stroop (r = 0.61; p<0.02) and Trail Making (r =  -0.51; p<0.02) but no association for the FAS. Thus, plastic changes in connectivity (i.e., sleep EEG coherence) were associated with improvement in complex cognitive function.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > University Psychiatric Services > University Hospital of Child and Adolescent Psychiatry and Psychotherapy

UniBE Contributor:

Tarokh, Leila

Subjects:

600 Technology > 610 Medicine & health

ISSN:

1932-6203

Publisher:

Public Library of Science

Language:

English

Submitter:

Nicole Jansen

Date Deposited:

29 Oct 2014 10:22

Last Modified:

04 Dec 2014 19:39

Publisher DOI:

10.1371/journal.pone.0106847

PubMed ID:

25208326

BORIS DOI:

10.7892/boris.59670

URI:

https://boris.unibe.ch/id/eprint/59670

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