The dopamine hypothesis of schizophrenia is the field’s longest-running mechanistic story, and most of its supporting evidence has been cross-sectional. A 2026 longitudinal PET study by Schulz and colleagues followed the same 28 patients across psychosis and early remission.1 Research Highlights The dopamine hypothesis of schizophrenia is the field’s longest-running mechanistic story. Cross-sectional 18F-DOPA PET …
PTSD and major depressive disorder co-occur in roughly half of patients with either diagnosis, and the comorbid presentation is more severe than either alone. The mechanistic question has been whether comorbidity reflects synergistic biology or simple symptom additivity. A 2026 rat-model study by Jiang and colleagues tests this directly, finding that PTSD-MDD comorbid rats show …
Black Americans are diagnosed with schizophrenia-spectrum disorders at 2.42 times the rate of White Americans, and they also score higher on negative-symptom measures than White patients carrying the same diagnosis.2 A 2026 paper by Spann and colleagues asks why. Research Highlights Black Americans are diagnosed with schizophrenia-spectrum disorders at 2.42x the rate of White Americans, …
The risperidone-stroke link in dementia is one of the longest-running safety signals in geriatric psychiatry, anchoring the FDA’s 2005 black-box warning on atypical antipsychotic mortality. Popular framing reduces it to “antipsychotics cause stroke in dementia” — a true sentence that flattens a multi-axis decision. Choma’s 2025 analysis of UK primary care records is the largest …
SSRIs raise bleeding risk on their own. DOACs (direct oral anticoagulants — apixaban, rivaroxaban, dabigatran, edoxaban) raise it more. The intuitive worry is that combining them stacks the two effects. A new BJGP Open analysis from Chau and colleagues argues the stacking is smaller than most popular framings claim, and that the real safety question …
Lithium prescribing during pregnancy sits in a knot of competing risks. The teratogenicity data have been recalibrated dramatically since the 1970s, while the postpartum-relapse data have moved in the opposite direction. Most popular framing still treats lithium as a uniquely dangerous fetal exposure to be avoided when possible. The new Chauhan UK cohort shows what …
For two decades, headlines have linked autism to maternal obesity, depression, anxiety, gestational diabetes, infection, autoimmune disease, and antidepressant use. The studies behind those headlines are well-replicated registry associations. A new design from the Aarhus University iPSYCH group offers the most careful answer yet to what they mean for an individual pregnancy. Most “maternal X …