[Behavior of full term infants small for gestational age in the first three months of life].

The objective was to compare the behavior of full-term infants small-for-gestational age (SGA) with full-term appropriate-for-gestational age (AGA). The sample considered 20 infants in the 1st, 2nd and in the 3rd months of life. The Bayley Scales of Infant Development-II were used, with attention to items related to Behavior Rate Scale (BRS). It was found that SGA infants showed lower average values in the BRS in the 2nd month. The Motor Quality Factor displayed significantly lower average values in SGA group, in the items Gross-motor Movement Required by Tasks, Control of Movements and Hypertonicity. The Attention/Arousal Factor in the items Exploration of Objects/Surroundings and Orientation to Examiner displayed significantly lower average values in the SGA group.