Figure 3.

(A) Infants born preterm touched their bodies less with objects than did infants born full-term (FT) in the first 6 months. (B and C) Even though groups spent similar amounts of time looking at objects overall (B), infants born preterm spent less time looking at objects while exhibiting other actions on them (visual-haptic multimodal exploration) toward the latter part of the study (C). (D) Infants born preterm with significant brain injury (PTBI) squeezed objects less than did infants in the other groups throughout the first year. (E) Infants born preterm without significant brain injury (PT no BI) had a delay in their peak throwing behavior, whereas infants born PTBI exhibited throwing less often overall and did not reach a peak similar to those reached by infants born FT and infants born PT no BI. (F) There were no significant differences in banging behavior, and similar trajectories were observed for infants born PT no BI (who had a delay in their peak banging behavior) and infants born PTBI (who had lower levels of banging behavior throughout most of the study and never reached the same peak levels of performance as the other groups). (G and H) There were trends for less cyclical movement (G) and fingering (H) in infants born PTBI than in infants born FT and infants born PT no BI. (I) No differences were observed among the groups for manipulation, yet the trajectories suggested that the groups may have been headed along different paths for this behavior.