Catatonia Linked to Lower Left Paracingulate Sulcus Rate (28% vs 53%)
A 2026 hospital MRI study found that the left paracingulate sulcus was present in 31 of 109 catatonia patients (28%) vs. 171 of 323 psychiatric controls without catatonia (53%), a left-hemisphere group effect that survived adjustment for age, sex, scanner, brain volume, benzodiazepines, and antipsychotics.1 Research Highlights Left PCS signal: left paracingulate sulcus (PCS) presence …