Study findings circulate on social media
2 Sep 14 7:01 PM · 9d ago · 1 post · 1 source · development 2 of 2
A summary of the PET imaging findings was shared on Mastodon, describing the 16–20% VMAT2 reductions in brain regions tied to motivation, movement, memory, planning and apathy.
Jeffrey Meyer Psychiatry professor, University of Toronto; study lead
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first by The National Tribune, 9d ago
What people said 5 voices · best of 6 · verbatim
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A study using PET brain scans found people with Long COVID had significantly lower levels of VMAT2, a protein involved in dopamine signalling, compared with healthy people. Reductions of 16–20% were found in brain regions involved in motivation, movement, memory, planning and apathy. 
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"The dopamine loss is different from ordinary dips in mood or motivation, Meyer said. It reflects an actual reduction in the density of nerve terminals, not simply lower dopamine output from nerves that remain intact. Whether that’s reversible is still unclear." https:// fortune.com/2026/09/14/long-co…
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Investigation of relationship between fatigue, cognitive performance and brain blood flow following Covid. # COVID # LongCovid https:// medicalxpress.com/news/2026-09 -brain-blood-linked-fatigue-covid.html
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People suffering from post-COVID-19 condition (PCC), or long COVID, demonstrate lower cerebral blood flow and slower reaction times, which may contribute to the cognitive fatigue frequently experienced by these individuals. # Neuroscience # Pathology # ClinicalMedicine # Physiology # sflorg https://www. sflorg.com/2026/09/ns09152601. html
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From Sweden 🇸🇪 Cognitive fatigue is related to reduced cerebral perfusion and sustained attention in patients with post COVID-19 condition: An fMRI study https://www. sciencedirect.com/science/arti cle/pii/S2666956026000899 Screenshot from latest Science for ME weekly update Hashtags: @ longcovid # LongCovid # PASC # PwLC # postcovid #…
All 2 developments of New brain scans show dopamine nerve loss in long COVID… →
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