Report summary

Harvard University Department of Psychiatry in 2022-2026 reads as a 120-PI network with 252 internal PI collaborations. The dominant subject mix is Medicine as the leading field (36% of slots across 89 PIs; 89 labels), Clinical Psychology as the leading subfield (12% of slots across 41 PIs; 41 labels), and Functional Brain Connectivity Studies as the leading topic (3% of slots across 11 PIs; 11 labels). That is promising: collaboration is not just one large hairball, and the leading breakdown groups cover 28 PIs across distinct clusters. The leading PI names are Roy H. Perlis (44.8 weighted works; COVID-19 Impact on Reproduction, Health, Environment, Cognitive Aging); John Torous (41.1 weighted works; Digital Mental Health Interventions, Mental Health Research Topics). The most visible ties are Ryan A. Mace and Ana‐Maria Vranceanu (20 shared works, weight 14.6). The leading breakdown groups are group 1 with 10 PIs, 15 internal connections, weight 90.2, around Clinical Psychology, Public Health, Environmental and Occupational Health, General Health Professions, led by John Torous, Hermioni L. Amonoo, Helen Burton Murray; group 2 with 10 PIs, 9 internal connections, weight 35, around Clinical Psychology, Experimental and Cognitive Psychology, Behavioral Neuroscience, led by Diego A. Pizzagalli, Kerry J. Ressler, Nathaniel G. Harnett.