Clinical psychology researcher Lorenzo Lorenzo-Luaces, PhD, of the University of Indiana Bloomington, is best known for his work on what he refers to as the “heterogeneity of depression.” A central goal of this research is moving beyond one-size-fits-all approaches by identifying meaningful differences in symptoms, severity, prognosis, and treatment response.
“Depression is likely not a single, uniform condition. People experience it very differently, with different symptoms, levels of severity, and trajectories over time,” he says. “Historically, we haven’t been very good at linking that heterogeneity to treatment decisions, which could range from doing nothing to low-intensity treatments to talk therapy to electroconvulsive therapy or ketamine for treatment-resistant depression.”
Lorenzo-Luaces also studies low-intensity and stepped-care interventions, exploring how brief, scalable treatments can help many people recover without immediately turning to intensive therapy or medication. We asked him to break down his findings into the key takeaways for clinicians.


