871 participants, 375 boys and 496 girls, mean age 16.7 + 1, were administered the Parental Bonding Instrument (P.B.I.), the Brief Symptom Inventory (B.S.I.), the General Well-Being Questionnaire (G.W.B.) and the Chestnut Lodge Transitional Object Scale. Results supported Winnicott's theory: participants reporting attachment to a Transitional Object (T.O.) in their childhood reported significantly more optimal maternal bonding than participants who were not attached to a T.O. Participants reporting attachment to a T.O. in adolescence had significantly more psychiatric symptoms and less general well-being. Adolescence T.O. attachment might be considered a marker of mental distress in the general, normal population.