CPSY 4343 Lecture Notes - Lecture 9: Visual Acuity, Object Permanence, Stim
12 May 2020
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Object permanence (continued from violation of expectation) Habituated to moving bar behind a barrier. 4 month old infants then looked longer at two bars. With motion as a cue, they can fill in the absent part. They expected it to be one bar so when they saw it was two the babies looked longer. Wynn. the mice and the screen, addition/subtraction. It could be addition, but they might just be confused because they thought they saw them put the mice behind the screen but then there is only one behind. It could be that they have memory for 2 things versus 1. Acuity: 20/20: you see at 20 feet what average person sees at 20 feet. Newborns- 1/30th of adult level, 20/600, they see how an average person sees from 600 feet away. If they prefer to look at the stripes vs grey then you can tell they can see it.
