Perception of dynamic and static audiovisual sequences in 3- and 4-month-old infants.

This study investigated perception of audiovisual sequences in 3- and 4-month-old infants. Infants were habituated to sequences consisting of moving/sounding or looming/sounding objects and then tested for their ability to detect changes in the order of the objects, sounds, or both. Results showed that 3-month-olds perceived the order of 3-element sequences and that 4-month-olds perceived the order of 3- and 4-element sequences. In addition, results indicated that perception of moving sequences was more robust than of looming ones and that detection of order differences was not based on primacy cues. The current results show that perception of multisensory sequences and their structure emerges early in development, and a preliminary model of the development of sequence perception is offered.