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Princeton 6
Sensation and Perception
10
Psychology
Not Applicable
04/13/2004

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Term
Sensation
Definition
the relationship between physical stimulation and its psychological effects; the process of taking information from the environment
Term
Perception
Definition
how we recognize, interpret, and organize our sensations
Term
Detection Thresholds
Definition
the act of sensing a stimulus.
Term
Absolute Threshold
Definition
the smallest amount of a particular stimulus that can be detected; the level of stimulation that is right on our perceptual borderline
Term
Signal Detection Theory (SDT)
Definition
-the idea that distinguishing sensory stimuli takes into account not only the strength of the stimuli but also such elements as setting and one's physical state, mood, and attitudes
-this theory takes into consideration that there are 4 possible outcomes on each trial in a detection experiment
Term
Hit
Definition
one of the 4 possible outcomes of the SDT; the signal was present, and the participant reported sensing it
Term
Miss
Definition
one of the 4 possible outcomes of the SDT; the signal was present, but the participant did not sense it
Term
False Alarm
Definition
one of the 4 possible outcomes of the SDT; the signal was absent, but the participant reported sensing it
Term
Correct Rejection
Definition
one of the 4 possible outcomes of the SDT; the signal was absent, and the participant did not report sensing it
Term
Discrimination Threshold
Definition
the ability to distinguish the difference between 2 stimuli
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