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Psychology sensation and perception

Terms

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subliminal messages
Brief auditory or visual messages that are presented below the absolute threshold
sensation
what occurs when a stimulus activates a receptor
psychophysics
The study of the relationships between sensory experiences and the physical stimuli that cause them
perception
The process by which individuals organize and interpret their impressions in order to give meaning to their environment.
absolute threshold
the weakest amount of a stimulus that a person can detect half the time
signal-detection theory
the study of people's tendency to make correct judgements in detecting the presence of a stimuli
constancy
The tendency to perceive certain objects in the same way regardless of changing angle, distance, or lighting
extrasensory perception
An ability to gain information by some means other that the ordinary senses
Weber's law
the principle that for any change in a stimulus to be detected, a constant proportion of that stimulus must be added or subtracted
difference threshold
The smallest difference between two stimuli that can be detected half the time.
motion parallax
The apparent movement of stationary objects relative to one another that occurswhen the observer changes position
illusions
perceptions that misrepresent physical stimuli
Gestalt
The experience that comes from orgainizing bits and pieces of information into meaningful wholes

Deck Info

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