Meryl Malezieux

@merylneuro.bsky.social

Neuroscientist / PhD in Neuroscience Emotion Research Department @ Max Planck Psychiatry, Munich Brain-Body interactions / Interoception / Emotions / Electrophysiology

I defended my PhD 10 years ago today. That was the least remarkable thing that happened that day. Sharing something I wrote about it last year. Since then "the horrors persist but so do we." And with dignity.

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1/8 New preprint alert! How are signals from the heart encoded in the brain? What could be the functional implications of cardioception? We found that neurons in the posterior insular cortex are precisely tuned to heartbeats, and that this cardio-insular coupling supports emotion coding in mice.

biorxiv.org

Are interoception and mental health linked? Many assume so, with interoception even described as a psychiatric “p-factor.” But in our latest preprint, we were surprised to find little evidence for such a connection. www.medrxiv.org/content/10.1... 🧵 Thread with our reflections on the matter 👇

Interoceptive Ability is Unrelated to Mental Health Symptoms: Evidence From a Large Scale Multi-Domain Psychophysical Investigation

Interoception-the sensing and perception of the internal viscera-is widely cast as a transdiagnostic mechanism linking brain-body interaction to mental illness. Prevailing models propose that altered ...

medrxiv.org

A cross-species study captured an emotional brain state characterized by lingering brain activity in higher-order areas. “It’s one of those moments where you’re getting a first glimpse at a vast and complex landscape,” says @deisseroth.bsky.social. By @callimcflurry.bsky.social bit.ly/3U33raF

Eye puffs prompt separable sensory, affective brain responses in mice, people

Post-puff brain state might not be an emotion, some researchers caution, but the protocol provides a cross-species approach to study emotions.

bit.ly