1. Aim: How does perception impact the way we experience the world?
Thursday, November 19, 2015
Aim: How does perception impact the way we experience the world?
Do Now:
Homework:
Sensation and Perception Homework due Friday
Sensation and Perception/States of Consciousness Exam on Friday, December 4

2. Perceptual Organization: Depth Perception
Aim: How does our perception impact the way we experience the world?
Perceptual Organization: Depth Perception
Depth Perception
ability to see objects in three dimensions
allows us to judge distance
Visual Cliff

3. Depth Cues Eleanor Gibson and her Visual Cliff Experiment.
Aim: How does our perception impact the way we experience the world?
Depth Cues
Eleanor Gibson and her Visual Cliff Experiment.
If you are old enough to crawl, you are old enough to see depth perception.

4. Monocular Cues Methods used by a single eye to judge depth perception
Aim: How does our perception impact the way we experience the world?
Monocular Cues
Interposition
Linear Perspective
Methods used by a single eye to judge depth perception
Light and shadow
Relative size
Relative height

5. Perceptual Organization: Depth Perception
Aim: How does our perception impact the way we experience the world?
Perceptual Organization: Depth Perception
Monocular Cues – depth cues available to either eye alone
Relative height
We perceive objects higher in our field of vision as farther away
relative size
smaller image is more distant
interposition
closer object blocks distant object
relative clarity
hazy object seen as more distant
Linear perspective
Parallel lines appear to converge with distance

6. Binocular Cues Methods used by both eyes to judge depth perception
Aim: How does our perception impact the way we experience the world?
Binocular Cues
Methods used by both eyes to judge depth perception
Retinal Disparity (as an object comes closer to us, the differences in images between our eyes becomes greater.
Convergence (as an object comes closer our eyes have to come together to keep focused on the object).
Did You Know? Retinal disparity is used by 3-D filmmakers… they achieve the 3-dimensional effect by displaying the film from two different projectors at once!

7. The floating finger sausage
Aim: How does our perception impact the way we experience the world?
The floating finger sausage
Hold your two index fingers about 5 inches apart
Now look beyond them and note the weird result
Move your fingers out farther and the retinal disparity—and the finger sausage—will shrink

8. Aim: How does our perception impact the way we experience the world?
Perceived Motion
Phi Phenomenon – illusion of movement created when two or more adjacent lights blink on and off in quick succession

9. Perceptual Constancy Perceptual Constancy color shape size
Aim: How does our perception impact the way we experience the world?
Perceptual Constancy
Perceptual Constancy
perceiving objects as unchanging even as illumination and retinal image change
color
shape
size

10. Perceptual Interpretation
Aim: How does our perception impact the way we experience the world?
Perceptual Interpretation
Perceptual Set
a mental predisposition to perceive one thing and not another
Class Activity! Half the class needs to close their eyes….

14. Aim: How does our perception impact the way we experience the world?
Face Schemas
Our face recognition capabilities are mostly attuned to the eyes and mouth

15. Aim: How does our perception impact the way we experience the world?

16. Activities Complete the two activities on the handout
Aim: How does our perception impact the way we experience the world?
Activities
Complete the two activities on the handout
Be prepared to discuss