Eyes/Ears/Smell/Taste Flashcards
(20 cards)
Rods
Retinal receptors that detect block, white, and gray
In retina
Cones
Receptor cells concentrated near center of retina and function in daylight or well-lit conditions
Detect fine detail, give rise to color sensations
Pupil
Adjustable opening in center of eye through which light enters
Iris
Ring of muscle tissue that forms around colored portion of eye around pupil and controls size of pupil opening
Lens
transparent structure behind the pupil that changes shape to focus images
Wavelength
distance from peak of one light/sound wave to next
Feature detectors
code for perceptually significant stimuli
Saccade
rapid movements of eyes that abruptly change the point of fixation
Trichromatic Theory
Retina contains three different types of cones (red, green, blue)
Audition
The sense of hearing
Sound waves
stimulus energy sensed by the ear
Middle ear
chamber between eardrum and cochlea containing three tiny bones (hammer, anvil, and stirrup) that concentrate vibrations of eardrum on cochlea’s oval window
Cochlea
Coiled, bony, fluid-filled tube in inner ear through which sound waves trigger nerve impulses
Olfaction
sense of smell
Kinesthetic sense
system for sensing the position and movement of individual body parts
Papillae
Small bumps on surface of tongue that contain taste buds
Sensory Adaptation
Diminished sensitivity as a consequence of constant stimulation
Sensory habituation
Behavior involving a shift in attention from a stimulus, and results in reduced response to the stimulus
McGurk Effect
auditory-visual illusion that makes you perceive that the movement of another person’s individual’s lips do not match with what individual is actually saying
Gate-control theory of pain
theory that spinal cord contains a neurological “gate” that blocks pain signals or allows them to pass on to the brain
