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Naltrexone Reduced Reappraisal Distress in 38-Person Threat fMRI Trial

Photoreal illustration of brain with vmPFC, amygdala, and threat-processing circuitry highlighted under pharmacological challenge.

The endogenous opioid system has been a candidate target for novel anxiety treatments, but a 2026 placebo-controlled crossover fMRI study in 38 healthy volunteers ran opposite the hypothesis: instead of increasing threat-related distress and amygdala reactivity, 50 mg oral naltrexone reduced subjective distress during cognitive reappraisal (p = 0.044, d = 0.57) and shifted ventromedial …

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Emotional Memory fMRI Separates Arousal From Valence

Photoreal illustration of brain with amygdala and prefrontal cortex highlighted, conveying dual-pathway emotional memory mechanism.

A 2026 fMRI study of 1,006 healthy young adults found that emotional pictures were remembered better than neutral pictures, but the brain signal split after arousal was modeled: amygdala and insula effects dropped out, while negative and positive valence kept separate cortical encoding patterns.1 Research Highlights Emotional pictures had the recall advantage: in the full …

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Bionic Brain Implants For Depression & PTSD in Development

Although most people turn to pharmaceutical medications to cope with mental illness like depression and PTSD, medications are not a person’s only option. In many cases, making healthy lifestyle changes (i.e. natural cures for depression) such as getting more exercise, reducing stress, and staying out of toxic relationships can be beneficial for a person’s mental health. Though …

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