Poster D113, Monday, March 27, 8:00 – 10:00 am, Pacific Concourse
Use of Temporal Information in 6-Month-Old Infants’ Expectations.
Kyle Comishen1, Scott A. Adler1; 1York University
An understanding of time is imperative for any form of functioning in one’s environment. Studies investigating time perception have revealed adults’ ability to discriminate millisecond time intervals from one another. Such a pattern has been observed in young children and infants as well. The goal of this study was to examine if infants as young as 6-months of age encode and use specific temporal information when formulating expectations about their environment. While lying supine in a crib, 6-month-old infants viewed stimuli on an overhead screen while an eye tracker recorded their eye movements. A cue was displayed at the center of the screen for a duration of either 700 or 1200 milliseconds. After this duration, the screen was blank for an interstimulus interval of 1000 milliseconds. A target then appeared either on the left or right side of the screen for 1000 milliseconds. During the interstimulus interval, infants could anticipate the location of the target by making an eye movement to its location before it appeared. When the target’s location was predicted by the cue’s duration, infants’ anticipations were correct at a rate of 78%, whereas they were correct at a rate of only 54% when target location was not predicted by the cue’s duration. The findings from this study support the notion that infants do encode and use specific temporal information about events on the millisecond scale when formulating expectations.
Topic Area: PERCEPTION & ACTION: Other