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Objectives
Objectives
Identify how theory manifests in practical context.
Identify how theory manifests in practical context.
Distinguish between top-down and bottom-up processing and hypothesize how this affects perception.
Distinguish between top-down and bottom-up processing and hypothesize how this affects perception.
Utilize theory to explain situation related to sensation and perception.
Utilize theory to explain situation related to sensation and perception.
What is sensation?
What is sensation?
"Sensory receptors [afferent neurons] are specialized neurons that respond to specific types of stimuli. When sensory information is detected by a sensory receptor, sensation has occurred." (Openstax)
"Sensory receptors [afferent neurons] are specialized neurons that respond to specific types of stimuli. When sensory information is detected by a sensory receptor, sensation has occurred." (Openstax)
What is sensed?
What is sensed?
Depends on the absolute threshold or the minimum amount of stimulus energy that must be present for the stimulus to be detected 50% of the time.
A message below that threshold is said to be subliminal: We receive it, but we are not consciously aware of it.
A message below that threshold is said to be subliminal: We receive it, but we are not consciously aware of it.
Can people be manipulated by subliminal messages?
Can people be manipulated by subliminal messages?
Difference Threshold & Weber's Law
Difference Threshold & Weber's Law
What is perception?
What is perception?
Perception is our interpretation of the sensory information (i.e. sensation is physical whereas perception is mental).
Perception is our interpretation of the sensory information (i.e. sensation is physical whereas perception is mental).
Processing Theory
Processing Theory
Bottom-Up vs. Top-Down
Bottom-Up vs. Top-Down
Cognitive Interference
Cognitive Interference
Sensory Adaptation
Sensory Adaptation
What's Affecting Your Perception Here?
What's Affecting Your Perception Here?
Signal Detection Theory
Signal Detection Theory
Stroop Effect
Stroop Effect
Exit Ticket
Exit Ticket
Extra Credit
Extra Credit
Radiolab: Colors
Radiolab: Colors
May 21, 2012
Rippin' the Rainbow a New One The Perfect Yellow
Why Isn't the Sky Blue?
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