“…The “capacity for defensive functioning” has recently been included among the 12 categories of basic mental functioning in the second edition of the Psychodynamic Diagnostic Manual (Lingiardi & McWilliams, 2017 ). In fact, assessing defenses can be particularly useful for both routine clinical work and process-outcome research in psychotherapy (Babl et al, 2019 ; Di Giuseppe, Perry, Petraglia, Janzen, & Lingiardi, 2014; Hilsenroth, Katz, & Tanzilli, 2018 ; Prout, Malone, Rice, & Hoffman, 2019 ). A strong understanding of defenses can assist clinicians in better understanding the strengths and difficulties of patients and helping them make sense of their experiences to develop adaptive responses to internal and external stressors.…”