The basis of the human experience! Perception The basis of the human experience!

Perceptual Organization

Closure What do you see?

Closure Tendency to perceive a complete or whole figure by filling in gaps that senses show. No actual triangle or circle

Figure-Ground Perception Perception of figures against a background What we perceive as the figure and perceive as the background influence our perception

Other Rules of Organization Proximity Similarity Continuity

Other Rules of Organization Continuity Cont’d Common fate

Perception of Movement

Movement Need to see object change position relative to other objects Earth

Stroboscopic Motion

Stroboscopic Motion Illusion of movement produced when showing progression of images that have not moved at all Using strobe lights Flipbook Hot Fuzz Movies

Depth Perception

Monocular Cues for Depth Need one eye Artists use it on paintings Perception of size effects how we view things

Monocular Cues Clearness = clearer when nearer Overlapping = placing one object in front of another

Monocular Cues Shadows/Highlights = clues to source of light

Monocular Cues Texture gradient = Less detail in texture further away

Monocular Cues Motion Parallax = image as viewer moves Driving in a car – Stars move with you, intermediate objects go similar speeds, and close objects zoom by

Perceptual Constancies

Size Constancy Gained through experience.

Shape Constancy

Visual Illusions FUN STUFF!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Which line is longer? Muller-Lyer Illusion

Which horizontal line is longer? Ponzo Illusion

Count the black dots

Read the color, not the word

Wrap Up How does perception affect the messages received from sensations?