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AP Psych Unit 4 - Sensation and Perception
AP Psych Unit 4 - Sensation and Perception
10
Psychology
12th Grade
03/22/2012

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Term
Sensation
Definition
The process by which our sensory receptors and nervous system receive and represent stimulus energies from our environment
Term
Perception
Definition
the process of organizing and interpreting sensory information, enabling us to recognize meaningful objects and events
Term
Bottom-up processing
Definition
analysis that begins with the sensory receptors and works up to the brain's integration of sensory information
Term
Top-Down Processing
Definition
information processing guided by higher-level mental processes, as when we construct perceptions drawing on our experience and expectations
Term
Selective Attention
Definition
the focusing of conscious awareness on a particular stimulus
Term
Inattentional blindness
Definition
failing to see visible objects when our attention is directed elsewhere
Term
Change Blindness
Definition
failing to notice changes in the environment
Term
Psychophysics
Definition
the study of relationships between the physical characteristics of stimuli, such as their intensity, and our psychological experience of them
Term
absolute threshold
Definition
the minimum stimulation needed to detect a particular stimulus 50 percent of the time
Term
Signal detection theory
Definition
a theory predicting how and when we detect the presence of a faint stimulus
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