Changes in prefrontal hemodynamics and mood states during screen use: a functional near-infrared spectroscopy study.

ABSTRACT: Screen use has been associated with poor cognitive and mental health, yet few studies have examined its effects on brain activity. Our aims were to describe changes in brain activity and mood states following brief exposure to screen-based content; assess the feasibility of using functional near-infrared spectroscopy (fNIRS) to measure these effects; and gather preliminary data to inform future investigations. Twenty-seven young people (age = 21.5 ± 2.8 years; range = 18-25) completed six consecutive 3-min screen conditions in a psuedorandomized cross over design. All screen exposures were presented on an iPhone 12-Max while sitting. Hemodynamic changes in the dorsolateral prefrontal cortex (dlPFC) were measured continuously using fNIRS (Portalite Mk II). Changes in mood states (energy, te

SUBMITTER: Fehring D 

PROVIDER: S-EPMC12316940 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature