Mothers, infants, and toys: Social play correlates of attachment
Infant Behavior and Development
Eighteen securely attached and 19 anxiously attached mother-infant pairs were observed at 14 months in a nonstressful play situation. The securely attached group evidenced (a) more frequent infant-to-mother toy exchanges; (b) fewer maternal demonstrations of play; (c) more frequent positively toned maternal vocalizations; and (d) fewer nonpositively toned infant vocalizations; but no differences in the cognitive quality of infant toy play.
Roggman, L. A., Hubbs-Tait, L., & Langlois, J. H. (1987). Mothers, infants, and toys: Social play correlates of attachment. Infant Behavior and Development, 10, 233-237.