Psychology 2040A/B Lecture Notes - Immanuel Kant, Otitis Media, Visual Acuity
19 Nov 2013
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Empiricists: infants must learn to interpret sensations. Enrichment theory (piaget): you see more and more and realize there is a difference (nurture) Cognitive schemes are needed to make sense of sensory information. Differentiation theory (gibson): brain develops to a point where they can make a difference (nature) Sensory info can be interpreted on its own. Research methods preference method: present 2+ stimuli simultaneously. Habituation method: decrease in response to a stimulus that has become familiar through repetition. Discrimination ability tested by presenting multiple stimulus and observing response. Evoked potentials: change in brain patterns indicate infant"s detection of stimulus. Observe changes in activity for different stimuli. High-amplitude sucking: asses an infant"s perceptual capabilities by allowing infant to make interesting events last by varying the rate they suck on a special pacifier. Discriminate sounds that differ in loudness, direction, duration, frequency. Newborns can discriminate, and prefer, mother"s voice. Early phoneme discrimination (smallest sound unit with meaning)
