Sensation and Perception

analysis that begins with sensory receptors and works up to brain’s integration

• perception
• bottom-up
• subliminal
• cones

brain organizes, interprets and transforms sensory information

• subliminal
• cones
• perceptual set
• perception

changing one form of energy into another

• feature detectors
• transduction
• retina
• wavelength

guided by higher-level mental processes, uses experience and expectations

• difference threshold
• top-down
• priming
• transduction

minimum difference between two stimuli required for detection 50% of the time (jnd)

• just noticeable difference
• priming
• tranduction
• feature detectors

minimum stimulation needed to detect a particular stimulus 50% of the time

• optic nerve
• absolute threshold
• sensation
• blind spot

reduced sensitivity in response to constant stimulation

• bottom-up
• sensory adaptation
• perception
• subliminal

ability to see objects in 3D, allows us to judge distance

• monocular cue
• depth perception
• visual cliff
• audtion

available to either eye alone

• visual cliff
• audition
• monocular cue
• extrasensory perception (ESP)

comparing images from the two eyes, brain computes distance

• retinal disparity
• color constancy
• grouping
• sensorineural