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emotional memory

CognitionMay 26, 2026

Emotional Memory fMRI Separated Arousal From Valence Effects

TL;DR: A 2026 Imaging Neuroscience functional MRI (fMRI) study found that emotional pictures were recalled better than neutral pictures, but amygdala and insula activity appeared tied mainly to arousal rather than whether memories were negative or positive. Ke…

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AnxietyMarch 28, 2026

How Insomnia Fragments REM Sleep and Causes Depression: The Neuroscience Explained

The Brain That Won’t Shut Down: How Fragmented REM Sleep Breeds Depression TL;DR: Chronic insomnia fragments REM sleep through persistent hyperarousal, preventing emotional memory consolidation and creating a vicious cycle that breeds depression—but cognitive-…

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Emotional Memory fMRI Separated Arousal From Valence Effects

How Insomnia Fragments REM Sleep and Causes Depression: The Neuroscience Explained

The findings. The context. The caveats.