Researchers used PET scans to compare two brain markers — dopamine transporters and synaptic density — in people with Parkinson’s and healthy volunteers. The study shows the usual link between markers breaks down in Parkinson’s.
Photo by Jack B, Unsplash
Researchers developed a bioluminescent calcium sensor called CaBLAM to record activity inside living brain cells without external light. The tool works in mice and zebrafish and enables long recordings that avoid damage from bright light.
Researchers at Washington University found that psychedelics acting on serotonin can disrupt the normal link between neuronal activity and blood flow in mice. Similar effects appeared with psilocybin and in reanalyzed human fMRI data.
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