A two-process model of infant visual attention is constructed based on research using the modified Berlyne technique with three- to five-month olds. The length of time an infant fixated a pattern was examined along with what caused him to turn to the pattern at all. The study was based both on a re-examination of previous research and on new experiments. Two distinct sets of processes were found in infant attention: Attention-Getting and Attention-Holding. It was found that in the four-month-old infant, habituation is primarily a function of the Attention-Holding process, and occurs more in males than females, although both sexes initially show preferences for, or look longer at, the more complex patterns. Performance on some trials indicates a tie-in between Attention-Getting and Attention-Holding, with the information obtained from prior fixations of the stimuli somehow determining the speed of subsequent head and eye orientation. The model is followed from occurrence of an Environmental Event, to operation of the Peripheral Perceiver, to information processing and splitting up by the Perceptual Processor, to Memory. Detailed flow charts are included. (LH)