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Presentation Transcript

Perception: 

Perception How we organize and interpret sensory information

Selective Attention Video : 

Selective Attention Video In the following video, you will see people dressed in either black or white passing a basketball. You must count the number of chest passes and bounce passes made by the players dressed in WHITE.

Selective attention - we can only focus awareness on a limited part of what we are sensing.: 

Selective attention - we can only focus awareness on a limited part of what we are sensing. Cocktail party effect – type of selective attention in which you can attend to only one voice at a time Cell phones and driving? Listening to music and studying?

Visual Capture: 

Visual Capture The tendency for vision to dominate your senses. At an IMAX movie, it feels like you are moving because it looks like you are moving. Your vision dominates over your vestibular system.

Parallel processing – processing many things at once: 

Parallel processing – processing many things at once Man who mistook his wife for a hat – could see form but not the big picture Colorblindness with functional cones Motion blindness Blindsight

Perceiving Images : 

Perceiving Images The first step in perceiving an image is determining the figure and ground.

Gestalt and the Urge to Organize: 

Gestalt and the Urge to Organize

Gestalt and the blind spot: 

Gestalt and the blind spot

Other gestalt principles: 

Other gestalt principles

More gestalt: 

More gestalt

And more gestalt: 

And more gestalt

Motion Perception How does the brain recognize an object is moving? How does it interpret the direction of movement?: 

Motion Perception How does the brain recognize an object is moving? How does it interpret the direction of movement? Brain interprets shrinking objects as receding and enlarging objects as approaching

Stroboscopic Effect the perception of motion produced by a rapid succession of slightly varying images (animation, movies) : 

Stroboscopic Effect the perception of motion produced by a rapid succession of slightly varying images (animation, movies)

Phi phenomenon an illusion created when two or more adjacent lights blink on and off in succession, creating the perception of movement (lighted signs, illusions): 

Phi phenomenon an illusion created when two or more adjacent lights blink on and off in succession, creating the perception of movement (lighted signs, illusions)

Motion Perception : 

Motion Perception Objects that are farther away appear to be moving more slowly. Think of a plane in the sky or a truck in the distance

Perceptual Constancy the ability to perceive an object is the same even as the illumination and retinal image changes.: 

Perceptual Constancy the ability to perceive an object is the same even as the illumination and retinal image changes. Shape Constancy- perception that shape of an object doesn’t change just because image on the retina does.

How many right angles do you see?: 

How many right angles do you see?

Perceptual Constancy : 

Perceptual Constancy Size constancy (King Koch or the incredibly shrinking teacher) – perception that an object’s size remain the same even as the retinal image changes.

Perceptual Constancy : 

Perceptual Constancy Color Constancy – the perception that familiar objects have a consistent color, even if changing illuminations alter the wavelength reflected.

Perceptual Constancy : 

Perceptual Constancy Lightness constancy – the perception that familiar objects have a constant lightness, even while illumination varies.

Size-distance relationship When other monocular cues tell us an image is further away, it actually appears larger.: 

Size-distance relationship When other monocular cues tell us an image is further away, it actually appears larger.

Moon illusion: 

Moon illusion Imagine you are outside on a clear night in which there are no clouds and that is a bright full moon. Pretend that you are going to pick up one of the following objects that when held at arm’s length just covers up the moon.

Moon Illusion Objects Imagine the moon is straight overhead.: 

Moon Illusion Objects Imagine the moon is straight overhead. BB Pea Dime Penny Nickel Quarter Golf ball Baseball Softball Small Salad Plate Large Salad Plate Frisbee Basketball Beach ball

Moon Illusion Now imagine the horizon moon. : 

Moon Illusion Now imagine the horizon moon. Softball Small Salad Plate Large Salad Plate Frisbee Basketball Beach ball BB Pea Dime Penny Nickel Quarter Golf ball Baseball

Moon Illusion: 

Moon Illusion What object do you need? A pea! For both the overhead and horizon moon.

Muller-Lyon Illusion Which is longer?: 

Muller-Lyon Illusion Which is longer?

Muller-Lyon Illusion: 

Muller-Lyon Illusion

Perceptual Adaptation: 

Perceptual Adaptation

Perceptual Set: 

Perceptual Set

Slide35: 

TIME FLIES I CANT THEYRE TOO FAST MacDonald MacHenry MacMahon Machinery FOLK CROAK SOAK

Unscramble in order.: 

Unscramble in order. List A List B LULB CALEM NUKKS SEUMO BAZER EAP NORC NOONI MATOOT PREPPE TEBE EAP

Context Effects: 

Context Effects

Extrasensory Perception : 

Extrasensory Perception Telepathy – mind reading Clairvoyance – perceiving remote events Precognition – Knowing things before they happen Telekinesis (psychokinesis) – moving objects with one’s mind (not technically ESP)