Brain Activation

Brain Activation

Articles tagged with "Brain Activation".

REM Sleep Sawtooth Waves: Widespread Brain Activation During Dreams

Tags: REM Sleep, Sawtooth Waves, Brain Activation, Dream Research

October 22, 2025

What Are Sawtooth Waves and Why Do They Matter for REM Sleep?

Sawtooth waves are distinctive brain wave patterns that occur during REM sleep, characterized by their sharp, serrated appearance on EEG recordings. This advanced neuroimaging research reveals that these waves are associated with widespread brain activation across multiple regions, providing crucial insights into how the brain generates dreams and processes memories during REM sleep. The waves appear to coordinate neural activity across distant brain regions, facilitating the complex cognitive processes that occur during our most vivid dreaming periods.

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