Sensation And Perception Flashcards
Perception
Process of integrating, organizing, and interpreting sensations
Sensory receptors
Cells unique to each sense organ that respond to a particular form of sensory info
Transduction
Process which a form of physical energy is concerted into a coded neural signal that can be processed by the nervous system.
Sensation
Process of detecting physical stimulus such a slight, sound, heat, or pressure.
Absolute threshold
Smallest possible strength of a stimulus that can be detected half the time
Difference threshold
Smallest difference between two stimuli that can be detected half the time;
noticeable difference
Sensory adaption
Decline in sensitivity to a constant stimulus.
Subliminal perception
Detection of stimuli that are below the threshold of conscious awareness
Nonconscious perception
Mere exposure effect
Findings that repeated exposure to a stimulus increases a persons preference for that stimulus.
Cornea
A clear membrane covering the visible part of the eye that helps gather and direct light
Pupil
Opening in middle of iris that changes size to let in different amounts of light
Iris
Colored part of eye which is muscle that contracts pupil
Lens
Transparent structure, focuses, bends light
Accommodation
Process by which the lens changed shape to focus
Retina
Light sensitive membrane in back of eye contains sensory receptors (rods/cones)