chapter 4 vocab Flashcards
absolute threshold
the minimum stimulation needed to detect a particular stimulus 50% OF THE TIME
Accommodation
involves altering one’s existing schemas, or ideas, as a result of new information or new experiences
Audition
the sense or act of hearing
basilar membrane
runs the length of the spiral cochlea, holds the auditory receptors, called hair cells
blind spot
point where the optic nerve leaves eye, there are are no receptors cells there
binocular depth cues
clues about distance based on differing views of the two eyes
bottom-up processing
analysis that begins with the sensory receptors and works up the brains integration of sensory information
change blindness
a phenomenon of visual perception that occurs when a stimulus undergoes a change without it being noticed by the observer
cocktail party effect
the ability to focus one’s attention on a particular stimulus while filtering out a range of other stimuli
Cochlea
a snail-shaped tube in the inner ear, where the physical stimuli of the sound wave is converted into a neural impulse.
depth perception
involves interpretation of visual cues that indicate how near or far away objects are
Cones
retinal receptor cells that are concentrated near the center of the retina and that function in daylight or in well-lit conditions, distinguishes colors
difference threshold
also known as just noticeable difference, the minimum difference a person can detect between any two stimuli half the time
feature detectors
nerve cells in the brain that respond to specific features of the stimulus, such as shape, angle, movement
fovea
the retina’s area of central focus
frequency theory
The rate of nerve impulses traveling up the auditory nerve matches the frequency of a tone; enabling us to sense its pitch.
gate-control theory
a mechanism which pain signals can be sent up to the brain to be processed to accentuate the perceived pain
Gestalt
the different ways individuals group stimuli together in order to make a whole that makes sense to them.
proximity, similarity, continuity, connectedness, and closure.
gustatory system -
the sensory for taste