Chamberlain 2011 AP psych
Sensory Perception
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Change blindness demo
Replication of Neisser demo 1
Video link: Selective attention 2
The color card experiment
subliminal message?
Visual cliff 1 and update by Campos
Gestalt principles of perception (15 minutes) Watch
on your own time if you need more explanation of
Gestalt principles
What do you see?
Why?
What is the Gestalt
principle behind your perception?
What do you see?
Why?
What is the Gestalt
principle behind your perception?
Common fate
What do you see?
Why?
What is the Gestalt
principle behind your perception?
What do you see?
Why? Closure
What is the Gestalt
principle behind your perception?
What do you see?
Why?
What is the Gestalt
Figure-ground (AKA pragnanz)
principle behind your perception?
What do you see?
Why?
What is the Gestalt
principle behind your perception?
Don’t say it out loud!!
How does top-down
processing relate
your perception of
this image?
Dissimilarity
We live in a 3D world—How does your brain know this?
Visual Depth Cues 3D with 1 eye
• Monocular cues
– Motion parallax video clip
Which of the following rules of monocular cues did the artist use to help
us perceive depth in this 2 dimensional image?
linear perspective
interposition
aerial perspective (AKA relative clarity)
relative size
texture gradient
shadows
elevation (AKA relative height)
Which of the following rules of monocular cues did the artist use to help
us perceive depth in this 2 dimensional image?
linear perspective
interposition
texture gradient
aerial perspective
elevation
relative size
shadows
Which of the following rules of monocular
cues did the artist use to help us perceive
depth in this 2 dimensional image?
linear perspective
interposition
texture gradient
shadows
aerial perspective
elevation
relative size
Which of the following
rules of monocular cues
did the artist use to help
us perceive depth in this
2 dimensional image?
linear perspective
interposition
texture gradient
shadows
aerial perspective
elevation
relative size
3D with 2 eyes
• Binocular cues
– Retinal disparity
• Floating hot dog finger! Can you explain the phenomenon?
– Oculomotor (proprioceptive) cues Your brain interprets motion
of muscle movement as depth
• convergence and vergence Feel the muscles move! Brain
detects inwards strain as ____________?
– object is closer!!
• accomodation= lens changes shape as you fixate on objects-more curvature for close objects, less for far away
• You don’t consciously control accomodation.
Human factors—what psych majors can do besides clinical psych
Trapped between doors
More really cool stuff!
• Perception of motion—the phi phenomenon Video clip
• Stroop effect class demo
• Why does it happen?
– Speed of Processing Theory: the interference occurs
because words are read faster than colors are named or
items are counted.
– Selective Attention Theory: the interference occurs
because naming colors or counting items requires more
attention than reading words.
How your sensory organs work:
The eye and the ear
• Cow eye dissection
• Video clip: how the eye works
• Video clip Hearing
How the other senses work
• Video clip olfaction
• Video clip taste and smell
• So you think you really need eyes to “see”?
– video clip of the blind painter
– Video clip: bionic eyes
– Echolocation part 1, part 2
• Pain—why do we feel it and why do we
sometimes not?
– Video clip woman falls off cliff
– Phantom limb video clip
Vestibular and kinesthesis demo
1. Nystagmus demo with 1 volunteer and a roving pair of eyes
2. All:
a)
b)
c)
Stand on 1 foot for 30 seconds. How well can you maintain balance?
Stand on 1 foot for 30 seconds with eyes closed. How well can you maintain
balance? What is helping your body maintain balance?
Spin until I tell you to stop. Close your eyes and balance on one foot. Why
can’t you?
3. ALL:
a)
b)
c)
Stand on right foot with left foot tucked behind right leg.
Close your left eye and direct your fovea at something with your right eye.
Gently apply pressure inwardly on your right eyelid so that you are forcing
your eyeball towards your nose while maintaining focus on the object
Are you field dependent or field independent?
a) Field dependent people rely on visual cues to create sense of
balance
b) Field independent people rely on gravity/vestibular cues to find
sense of balance
So what?
a) Field dependent people tend to be more extroverted,
emotionally open and good at reading social cues
b) Field independent people tend to be more introverted,
cerebral, and science/math oriented