Tiny Tunes

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Recommended: Infant sensory research

Jiahui (Ivy) Wu
Psych 130 1H
Reflection Paper
In week 3 discussion session, Justin Ezer, Sophia Halavi, and Adam Hall presented the Experiment #1 – Tiny Tunes. The experiment tested the memory skill of the infants from their third trimester to see if they recognized voice. In order to make infants recognize the voice, it is crucial that repetition occurs to increase the neural activity. In their source article, it indicated that infants could perceive different types of sound, so infants would be able to memorize the sound they hear after they born. The study used quantifying response – heart rate – to further confirm this behavior as their heart rate increases when they hear the vocal cue. In their empirical study, they tested how infants …show more content…

They mentioned that the experiment was designed to test if infants tend to touch the toy with their feet first or their hands. The results showed that most of the infants used less time to reach toys with feet than with hands, or infants may not be able to reach with their hands yet. In their source article, they confirmed that infants did reach toys with feet first, which was found to against the cephalocaudal rule. Moreover, the study suggested that the use of supraspinal centers came a lot earlier than presumed in the classical view. In their empirical experiment, however, they explained that the study found that motor and reflexive development co-occur rather than descent each other. The study tested how stimuli affected infants using feet and hands to reach toys by conducting a cross-sectional and a longitudinal study. It turned out that the activity of the infants would decline with the presence of the stimuli. From this presentation, I learn that infants would reach with their feet first because the flexibility of their upper extremities would make it tough for them; moreover, they take long time to master all their movements together. Hence, I’m a little bit surprised that it would need higher degree of control for them to use their hands to reach the toys. I also realize that I would not be concerned about why the bay does not use

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