HOT ROC: HOT ROC: Comparing Subjective Comparing Subjective Information Information Form groups of four Form groups of four For each of the following list, rate For each of the following list, rate as a percentage the amount that as a percentage the amount that environment and heredity influence the environment and heredity influence the trait trait (ex. Intelligence: environment 60%, (ex. Intelligence: environment 60%, heredity 40%) heredity 40%) 1. Body build 1. Body build 6. Handedness 6. Handedness 2. Intelligence 2. Intelligence 7. Height 7. Height 3. Personality 3. Personality 8. Musical ability 8. Musical ability 4. Mathematical ability 4. Mathematical ability 9.Longevity 9.Longevity 5. Baldness 5. Baldness
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HOT ROC: Comparing Subjective Information Form groups of four Form groups of four For each of the following list, rate as a percentage the amount that.
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HOT ROC:HOT ROC:Comparing Subjective Comparing Subjective
InformationInformation Form groups of fourForm groups of four For each of the following list, rate as a For each of the following list, rate as a
percentage the amount that environment percentage the amount that environment and heredity influence the traitand heredity influence the trait (ex. Intelligence: environment 60%, heredity (ex. Intelligence: environment 60%, heredity
Reading Questions from pages 174-Reading Questions from pages 174-176176
Twin studies: unitedstreamingTwin studies: unitedstreaming What can this information tell us?What can this information tell us? How does our upbringing influence How does our upbringing influence
our ability to judge and process our ability to judge and process information? information?
Sensation & PerceptionSensation & Perception
Sensation Sensation DefinitionDefinitionWhat occurs when a What occurs when a
stimulus activates a stimulus activates a receptorreceptor
How many senses are there?How many senses are there?5 Senses5 Senses
Examples Examples (do not write down)(do not write down)Sight- Seeing a candle flame 30 miles Sight- Seeing a candle flame 30 miles
away on a clear nightaway on a clear nightHearing- Hearing a watch ticking 20 Hearing- Hearing a watch ticking 20
feet awayfeet awayTaste- 1 teaspoon of sugar dissolved in Taste- 1 teaspoon of sugar dissolved in
2 gallons H2O2 gallons H2OSmell- 1 drop of perfume in a 3 room Smell- 1 drop of perfume in a 3 room
househouseTouch- Feeling a bee’s wing fall 1 cm Touch- Feeling a bee’s wing fall 1 cm
onto your cheekonto your cheek
Perception Perception DefinitionDefinition
Organizing sensory info. Organizing sensory info. into meaningful into meaningful experiencesexperiences
Brain tries to make sense of Brain tries to make sense of large amount of stimulilarge amount of stimuli
Creates “wholes” out of bits Creates “wholes” out of bits of info. (Gestalt)of info. (Gestalt)
Perceptual SetPerceptual Set Past experiences and Past experiences and perceptions create a perceptions create a framework through framework through which you view the worldwhich you view the worldEx “I perceive all old Ex “I perceive all old people as kind b/c my people as kind b/c my grandma is kind.”grandma is kind.”
Simplicity Simplicity (Reification)(Reification)
We see the We see the simplest simplest shape shape possible possible
ProximityProximity When When objects are objects are close close together, we together, we tend to tend to perceive perceive them as them as groupsgroups
SimilaritySimilarityWhen When similar and similar and dissimilar dissimilar objects are objects are mingled, we mingled, we see similar see similar objects as objects as groupsgroups
ClosureClosure When we When we see a see a familiar familiar pattern or pattern or shape shape w/missing w/missing parts, we fill parts, we fill in the gapsin the gaps
Continuity Continuity We tend to We tend to see see continuous continuous patterns, not patterns, not disrupted disrupted ones ones
Figure and Figure and GroundGround
DiscriminatioDiscrimination between a n between a figure and itsfigure and its backgroundbackground
InvarianceInvariance
Simple geometrical Simple geometrical objects are objects are recognized recognized independent of independent of rotation, translation, rotation, translation, and scale; as well as and scale; as well as several other several other variations such as variations such as elastic deformations, elastic deformations, different lighting, different lighting, and different and different component features. component features.
Other Interesting Other Interesting Perception Perception TechniquesTechniques
Count the number of Count the number of “F’s”“F’s”
FEATURE FILMS ARE THE RE-FEATURE FILMS ARE THE RE-
SULT OF YEARS OF SCIENTI-SULT OF YEARS OF SCIENTI-
FIC STUDY COMBINED WITHFIC STUDY COMBINED WITH
THE EXPERIENCE OF YEARSTHE EXPERIENCE OF YEARS
FEATURE FILMS ARE THE RE-
SULT OF YEARS OF SCIENTI-
FIC STUDY COMBINED WITH
THE EXPERIENCE OF YEARS
Answer: 6
Most people see 3, but don’t notice the f’s on OF. It appears that we process those f’s as v’s.
Rene Magritte’s Rene Magritte’s “The Human “The Human Condition”Condition”
Forcefully Forcefully demonstrates the demonstrates the paradoxes of paradoxes of perception through perception through paintingpainting
Size ConstancySize Constancy
The Blakemore-Sutton EffectFirst, judge whether these two grating have the same size bars.
The Blakemore-Sutton EffectLook back and forth across the central bar.? Count to about 45 second and then press the mouse.
The Blakemore-Sutton EffectDo the gratings still have the same bar size?
Simultaneous Simultaneous ContrastContrast
PixelizPixelizeded
FamouFamous s
PersonPerson
Induced Motion:Induced Motion:
Does the dot Does the dot appear to move?appear to move?
Motion Parallax:Motion Parallax:
As we move, objects that As we move, objects that are closer to us move are closer to us move
farther across our field of farther across our field of view than do objects that view than do objects that