Synaptic Loss in Schizophrenia Follows a Surprisingly…

Synaptic Loss in Schizophrenia Follows a Surprisingly Organized Pattern, Starting in One Specific Brain Region Synaptic connections, the tiny junctions that allow brain cells to communicate, are believed to play a central role in the cognitive and emotional symptoms of schizophrenia. But until now, scientists have had only a limited view of exactly where this synaptic loss actually occurs in the living human brain, since standard imaging tools like MRI cannot directly measure synapses. A new study published in Molecular Psychiatry changes that, using specialized PET imaging to map this loss directly, and finding it follows a genuinely organized pattern rather than random deterioration. The study: Researchers conducted one of the largest synaptic density PET imaging studies to date, involving 122 people, including 29 individuals diagnosed with schizophrenia. This specialized imaging technique allowed direct measurement of synaptic connections across the brain, something conventional MRI simply cannot do. The key finding, widespread loss, but not evenly distributed: Compared to healthy participants, people with schizophrenia showed a pronounced, widespread reduction in synaptic connections across multiple brain