Albert Moll, The Sexual Life of the Child — Etiology and Diagnosis (1913)
“ Psychically determined erections may likewise occur, although the physical development is by no means far advanced. We shall therefore do wisely to avoid taking a narrow view of such a connexion, inasmuch as it may be that the physical signs of puberty on the one hand, and the phenomena of detumescence and contrectation on the other, may occur in conjunction at a very early age, whilst, in other cases, phenomena of the one class or of the other may occur in isolation. ”
