Bright light exposure reduces negative affect and modulates EEG activity in sleep-deprived and well-rested adolescents

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023752%3A_____%2F25%3A43921651" target="_blank" >RIV/00023752:_____/25:43921651 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11120/25:43929146 RIV/00216208:11310/25:10506581 RIV/68407700:21460/25:00386735 RIV/68407700:21720/25:00386735

Result on the web

<a href="https://www.frontiersin.org/journals/behavioral-neuroscience/articles/10.3389/fnbeh.2025.1673093/full" target="_blank" >https://www.frontiersin.org/journals/behavioral-neuroscience/articles/10.3389/fnbeh.2025.1673093/full</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3389/fnbeh.2025.1673093" target="_blank" >10.3389/fnbeh.2025.1673093</a>

Result language

angličtina

Original language name

Bright light exposure reduces negative affect and modulates EEG activity in sleep-deprived and well-rested adolescents

Original language description

Introduction This study investigated whether a single morning session of bright light exposure modulates alertness, cognition, mood, and EEG activity in well-rested and partially sleep-deprived adolescents.Methods Forty-seven subjects (15-21 years) were assigned to a well-rested (8 h sleep; 9 men, 15 women) or a sleep-deprived group (4 h sleep; 11 men, 12 women). All underwent 30 min of morning bright light exposure, with EEG, cognitive testing, and ratings of sleepiness and affect conducted pre- and post-intervention. Behavioral and electrophysiological changes were compared within and between groups. Associations between changes in EEG activity and behavioral outcomes were explored using correlation analyses.Results Bright light significantly reduced negative affect and improved Digit Span Forward task performance. No changes were observed in positive affect, subjective sleepiness, or Digit Span Backward scores. EEG analysis revealed decreased delta activity in the anterior cingulate cortex and increased beta activity in the right insula and fronto-parietal regions. Behavioral and EEG effects were similar across groups; however, only in the sleep-deprived group changes in beta activity significantly correlated with reduced negative affect.Discussion These results suggest that bright light may acutely enhance emotional state, cognitive performance, and cortical arousal in adolescents. The link between beta activity and affective improvement under sleep deprivation suggests a potential mechanism by which light supports emotional regulation.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

30103 - Neurosciences (including psychophysiology)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Frontiers in Behavioral Neuroscience

ISSN

1662-5153

e-ISSN

—

Volume of the periodical

19

Issue of the periodical within the volume

1673093

Country of publishing house

SE - SWEDEN

Number of pages

11

Pages from-to

1-11

UT code for WoS article

001641521400001

EID of the result in the Scopus database

2-s2.0-105025564952