40 Hz Audiovisual Stimulation Improves Sustained Attention and Related Brain Oscillations.

ABSTRACT: Gamma oscillations (30-100 Hz) have long been theorized to play a key role in sensory processing and attention by coordinating neural firing across distributed neurons. Gamma oscillations can be generated internally by neural circuits during attention or exogenously by stimuli that turn on and off at gamma frequencies. However, it remains unknown if driving gamma activity via exogenous sensory stimulation affects attention. We tested the hypothesis that non-invasive audiovisual stimulation in the form of flashing lights and sounds (flicker) at 40 Hz improves attention in an attentional vigilance task and affects neural oscillations associated with attention. We recorded scalp EEG activity of healthy adults (n=62) during one hour of either 40 Hz audiovisual flicker, no flicker as control, o

SUBMITTER: Attokaren MK 

PROVIDER: S-EPMC12407815 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature