Thiessen, E. D. and Saffran, J. R. (2003). When cues collide: use of stress and statistical cues to word boundaries by 7- to 9-month-old infants. Developmental Psychology, 39(4) 706-716.
Presentation: Shelly
Summary: Sarah
Previous studies concerning how infants detected word boundaries basically took two approaches – reliance on stress cues vs. statistical learning mechanism. This study intended to explore how infants of different ages did word segmentation when these two cues collided. Three experiments were performed accordingly. Results of Experiment 1 showed that 9-month-old infants attended to stress cues more when statistical cues and stress cues indicated different word boundaries. Under the same condition, Experiment 2 showed that 7-month-old infants utilized statistical cues more. The authors then turned to 9-month-old infants again in Experiment 3. This time the stress cues were removed from stimuli, thus simplifying the difficulty of the task. Result of Experiment 3 indeed replicated that of Exp. 2. In conclusion, the findings in this study asserted that the use of statistical cues in word segmentation was prior to stress cues.
Summary: Sarah
Previous studies concerning how infants detected word boundaries basically took two approaches – reliance on stress cues vs. statistical learning mechanism. This study intended to explore how infants of different ages did word segmentation when these two cues collided. Three experiments were performed accordingly. Results of Experiment 1 showed that 9-month-old infants attended to stress cues more when statistical cues and stress cues indicated different word boundaries. Under the same condition, Experiment 2 showed that 7-month-old infants utilized statistical cues more. The authors then turned to 9-month-old infants again in Experiment 3. This time the stress cues were removed from stimuli, thus simplifying the difficulty of the task. Result of Experiment 3 indeed replicated that of Exp. 2. In conclusion, the findings in this study asserted that the use of statistical cues in word segmentation was prior to stress cues.
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