Assessing individual differences in the speed and accuracy of intersensory processing in young children: The intersensory processing efficiency protocol
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Detecting intersensory redundancy guides cognitive, social, and language development. Yet, researchers lack fine-grained, individual difference measures needed for studying how early intersensory skills lead to later outcomes. The intersensory processing efficiency protocol (IPEP) addresses this need. Across a number of brief trials, participants must find a sound-synchronized visual target event (social, nonsocial) amid five visual distractor events, simulating the "noisiness" of natural environments. Sixty-four 3- to 5-year-old children were tested using remote eye-tracking. Children showed intersensory processing by attending to the sound-synchronous event more frequently and longer than in a silent visual control, and more frequently than expected by chance. The IPEP provides a fine-grained, nonverbal method for characterizing individual differences in intersensory processing appropriate for infants and children.
Bahrick, Lorraine E.; Soska, Kasey C.; and Todd, James Torrence, "Assessing individual differences in the speed and accuracy of intersensory processing in young children: The intersensory processing efficiency protocol" (2018). Department of Psychology. 89.