Optic Nerve
The nerve that carries visual information from the eye to the occipital lobes of the brain
Blind Spot
The point at which the optic nerve travels through the retina to exit the eye; the lack of rods and cones at this point, creates a small blind spot
Trichromatic (three-color) Theory
A theory of color vision that says cones are sensitive to red, green and blue light - the three colors that combine to create millions of color combinations
Subtractive Color Mixing
When mixing colored paints, each new color SUBTRACTS (soaks up) another wavelength
Additive Color Mixing
When mixing colored lights, each new color ADDS another wavelength
Color Deficient Vision
People who lack one of the three types of cones
Opponent-Process Theory of Color
A theory of color vision that says color is processed by cones organized in opponent pairs
(red-green, yellow-blue, black-white); light that stimulated one half of the pair inhibits the other half
A sound's highness or lowness, which depends on the frequency of the sound wave
Hertz (HZ)
A measure of the number of sound wave peaks per second; measures "frequency"
Decibel (dB)
A measure of the height of the sound wave; determines the loudness of the sound
Auditory Canal
The opening through which sound waves travel as they move into the ear for processing
Tympanic Membrane (eardrum)
The tissue barrier that transfers sound vibration from the air to the tine bones of the middle ear
Three tiny bones that transfer sound waves from the eardrum to the cochlea
The major organ of hearing; a snail shaped bony body tube fluid-filled in the inner ear where sound waves are changed to neural impulses
Oval Window
The point on the surface of the cochlea which receives the sound vibration from the ossicles
Hair Cells
The receptor cells for hearing; they're are located in the cochlea and are responsibly for changing sound vibrations into neural impulses
Auditory Nerve
The nerve that carries sound information from the ears to the temporal lobes of the brain
Semicircular Canals
Organs in the inner ear used in sensing body orientation and balance (vestibular sense)
Linda Bartoshuk
Renowned researcher on the role of genetics and the treatment of disorders in the chemical senses of taste and smell
People with an abundance of taste receptors
People with a minimum of taste receptors
Olfactory Cells
The chemical receptor cells for smell
Kinesthetic Sense
The system for sensing the position and movement of individual body parts
Vestibular Sense
The system for sensing body orientation and balance, which is located in the semicircular canals in the inner ear