Revisiting Regression in Autism: Heller’s Dementia Infantilis : Includes A …

Abstract Theodor Heller first described a severe regression of adaptive function in normally developing children, something he termed dementia infantilis, over one 100 years ago. Dementia infantilis is most closely related to the modern diagnosis, childhood disintegrative disorder. We translate Heller’s paper, U¨ ber Dementia Infantilis, and discuss similarities in presentation between He…