To investigate the effect on bonding behavior of giving mothers their premature baby's picture, 40 mother-infant dyads were randomly assigned to experimental (E) and control (C) groups. The E mothers were given a picture of their baby. The C mothers did not receive pictures. Both groups had visitation rights 24 hours a day. Two bonding observation measures were obtained--pretest and posttest. Results showed that E mothers exhibited significantly more bonding behaviors on posttest measured by (a) a bonding observation checklist, and (b) a physical examination observation checklist, than the C mothers.