PSYCH 3550 Lecture Notes - Lecture 5: Plantar Reflex, 18 Months, Reinforcement
9 Nov 2016
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Chapter 5 - seeing, thinking, & doing in infancy: perception, vision, research methods for studying infants" vision, preferential looking. Babies shown 2 pictures/patterns at same time to see if there is a preference: habituation. Repeatedly presented with stimulus until response declines, then with new stimulus to see if response increases: visual acuity. Estimated by comparing how long infants looks at striped patterns. Ex: children would prefer an eye chart to a pastel painting, because: they have poor contrast sensitivity black and white is easy to distinguish, they will like bright easy-to-distinguish colors like primary colors. The cones are still developing. (cones are concentrated in fovea: differ from adults; in size, shape, and spacing they don"t have good vision for detail or color. Limited color vision until 2-3 months old. Babies prefer to look at faces than anything else. At 1 month, focus on the shadows and highlights on faces. At 2 months, focus on the features.
