Fig. 1.

Stimulus material of the ERP study. Three pictures (rabbit, giraffe, dresser, or dresser, chair, rabbit) were presented in random order: one stimulus in 60% of the trials (standard stimulus; rabbit or dresser), one stimulus from the same superordinate category in 20% of the trials (oddball-same), and another stimulus from the contrasting category in 20% of the trials (oddball-different). The number of pictures reflects the presentation ratio. The rabbit and the dresser were of bluish-gray color, the giraffe and the chair were of reddish-brown color. Half of the infants were randomly assigned to condition A, the other half to condition B. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of the article.)