PS275 Chapter Notes - Chapter 7: Eleanor J. Gibson, Immanuel Kant, Tabula Rasa
Document Summary
Research methods used to study the infant"s sensory and perceptual experiences. If they fail to react assumed the difference is to subtle to detect for the infant: useful for assessing sensory and perceptual capabilities, distinguishing between habituation and preference effects can be tricky. If the infant finds it interesting they can make it last by displaying bursts of high- amplitude sucking: once interest is gone, the sucking goes back to baseline and stimulation stops. If you wanted to determine whether babies prefer mothers" voice to a female stranger voice we can adjust the circuitry in pacifier so that high-amplitude sucking activates mother voice and low-amplitude (or no) sucking activates the other. Hearing: using the evoked potentials method, researchers have found that soft sounds that adults can hear must be noticeably louder before a neonate can detect them. At 1 month they stop turning reliably, may even turn away.
