He noted Dostoevsky’s increasingly obsessive preoccupation with morality and proper behavior, his growing tendency to “get embroiled in petty arguments,” his lack of humor, his relative indifference to sexuality, and, despite his high moral tone and seriousness, “a readiness to become angry on slight provocation.” Geschwind spoke of all this as an “interictal personality syndrome” (it is now called “Geschwind syndrome”). Patients with it often develop an intense preoccupation with religion (Geschwind referred to this as “hyper-religiosity”).

