Chapter 5 Flashcards
mastery training and slides
cochlea
structure in the inner ear that contains auditory receptors
transduction
translation of incoming sensory information into neural signals
signal detection
analysis of sensory and decision-making processes in the detection of faint, uncertain stimuli
olfactory nerve
nerve carrying information of smells from the receptors to the bulbs
cornea
clear surface that begins the process of directing light to the retina
vestibular system
located in the inner ear and provides information about body position and movement
somatosensation
body senses, including body position, touch, skin temperature, and pain
optic tract
nerve pathway traveling to the thalamus, hypothalamus, and midbrain
sensory adaptation
tendency to pay less attention to a nonchanging source of stimulation
fovea
area of the retina that is specialized for highly detailed vision
cone
photoreceptor in the retina that processes color and fine detail
auditory nerve
carries sound information from the cochlea to the brain
retinal disparity
difference between the images projected onto each eye
olfactory bulb
structures below the frontal lobes that receive input from the receptors in the nose
optic nerve
carries visual information exiting the retina of the eye
gate theory
theory that suggests that input from touch fibers competes with input from pain receptors, possibly preventing pain messages from reaching the brain
rod
photoreceptor specialized to detect dim light
depth perception
ability to use the two-dimensional image projected on the retina to perceive three dimensions
gustation
sense of taste
top-down processing
perceptual process in which memory and cognitive processes are required for interpreting incoming sensory information
pupil
opening formed by the iris
absolute threshold
smallest amount of stimulus that can be detected
olfaction
sense of smell
organ of Corti
structure located on the basilar membrane that contains auditory receptors
transduction
translation of incoming sensory information into neural signals
iris
brightly colored circular muscle of the eye
psychophysics
study of relationships between the physical qualities of stimuli and the subjective responses they produce
papillae
small bumps on the tongue that contain taste buds