PSYCH 240 Chapter Notes - Chapter 3: Global Precedence, Parietal Lobe, Temporal Lobe
Document Summary
Proximal stimulus: image of distal stimulus on retina. Perceptual object (percept): object created internally to represent external. Photoreceptors: convert light energy to electrochem energy transmitted by neurons. Rods: 120 mil rods, long and thin, concentrated in periphery, night vision, sensitive to brightness. Cones: 80 mil cones, short and thick, in foveal region, perceive color. Fovea: small thin region of retina where vision is most acute. Bottom-up theory: perception starts with the stimuli taken in through your eye, perception happens when light info transported to brain (data-driven/stimulus-driven) Direct perception: sensory info is all we need to perceive (ecological perception) Template theories: detailed models for patterns we might recognize. Feature matching theories: match features of a pattern to features stored in memory, rather than to match a whole pattern to a template/prototype. Global precedence effect: easier to identify whole than parts. Cognitive demons: shout when they receive certain combo of features. Decision demons: listens for loudest shout to determine input.
