Psychology 2410A/B Chapter Notes - Chapter 3: Leading Edge, System Model, Interposition
11 Mar 2017
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Important foundation more sophisticated activities: newborns brightness discrimination abilities sufficient form basis higher-level perceptual skills, 4 months= judge relative levels brightness image comparing two adjacent areas. Visual experience and brain development: 2 levels growth visual experience: optical acuity-sharpness image on retina and processing acuity- how well brain"s visual cortex processes info received from retina. Increasingly focused input develop elaborate neural connections enable higher levels acuity: depriving visual cortex input inhibits dev processing acuity in brain, even when restored later- critical periods. Color: newborns able to tell apart different wavelengths light (hue) and cluster into categories similar adults use. Influenced by ratio color to white light (saturation) and brightness. Perceiving hue and clustering of hues: color vision very early improves 4 weeks distinguish ever-smaller differences hue. Increases processing abilities whole visual system: categorical perception- tendency cluster stimuli vary along continuum into discrete categories.
