https://www.biologicalpsychiatryjournal.com/article/S0006-3223(25)01676-2/abstract
Speech latency showed excellent internal consistency, good temporal stability, and minimal convergence with potential confounders. Patients with (vs patients without) moderate-to-severe negative symptoms showed longer speech latencies, with large effect sizes observed in every country (Cohen’s d=0.83 to 1.47).