Presentation on theme: "Unit 4(G): Perceptual Organization and Interpretation"— Presentation transcript:
1Unit 4(G): Perceptual Organization and Interpretation Mr. McCormickA.P. Psychology
2Do-Now (In Journal) What is an illusion? How can illusions influence and mislead our perception of a stimulus?Provide an example of a perceptual illusion that you have experienced.
3Perceptual Organization What do you perceive when you observe this image?Why do you think you perceive two facial images?
4Perceptual Organization Gestalt:An organized wholeTendency to integrate pieces of information into meaningful wholes
5Form Perception Figure-ground: The organization of the visual field into objects (the figures) that stand out from their surroundings (the ground)
6Form Perception Look at the images on Hand-Out 6-13: How does Figure 1 illustrate the concept of gestalt?What do you see when you look at Figure 2? What does this suggest about our perception?How does Figure 3 create a conflict of figure-ground?What ambiguous figures does your mind organize and reorganize in Figure 4?
7GroupingAfter distinguishing the figure from the ground, our perception needs to organize the figure into a meaningful form using grouping rules
8Grouping and RealityAlthough grouping principles usually help us construct reality, they may occasionally lead us astray.
9Depth Perception Depth Perception: Ability to see objects in three dimensions although the images that strike the retina are two-dimensionalAllows us to perceive distance
10Depth Perception: Binocular Cues Why is it difficult to bring the tips of two pens together with one eye closed?How does the brain use retinal disparity to perceive distance?How do 3-D movies apply principles of binocular cues?
11Depth Perception: Binocular Cues Depth perception enables us to judge distances. Gibson and Walk (1960) suggested that human infants (crawling age) have depth perception. Even newborn animals show depth perception.Visual Cliff
12Depth Perception: Binocular Cues: Try looking at your two index fingers when pointing them towards each other half an inch apart and about 5 inches directly in front of your eyes. What do you see?
14Perceptual Constancy Perceptual Constancy: Perceptual Set: Perceiving objects as unchanging (having consistent shapes, size, lightness, and color) even as illumination and retinal images changePerceptual Set:A mental predisposition to perceive one thing and not another
29Review How do gestalts influence our perception? How do we use retinal disparity to understand depth?What does perceptual set suggest about our abilities to perceive?How do biological, psychological, and social-cultural influences affect our perception?
30Homework Unit 4 Test: “Sensation and Perception” Chapter 5 Outline: “States of Consciousness”