Vocab
Macular degeneration
Caused by the deterioration of cones in the retina. Peripheral and night vision often remain normal.
Stroop Test
A psychological experiment that measures cognitive interference and selective attention by requiring participants to name the ink color of words, rather than the words themselves.
Kinesthesis
The sense of body position and movement. Kinesthesis cooperates with your sense of vision and vestibular system to maintain position and posture.
Psychophysics
The study of the relationship between sensory experiences and the physical stimuli that cause them.
Binocular depth cue
Visual cues that require both eyes to perceive depth and distance.
Vestibular
Regulated by the inner ear, specifically three semicircular canals that move as you do, and keep the fluid inside them in place.
“Chemical senses”
Refer to smell and taste because their receptors are sensitive to chemical molecules as opposed to sound waves or light.
Monocular depth cue
Visual cues that allow the brain to perceive depth and distance using only one eye.
Touch
The ability to perceive pressure, vibration, pain, and temperature through nerve receptors in the skin.
Glaucoma
When pressure in the eyes rises above normal levels, it damages the optic nerve. Glaucoma can be controlled with medication and surgical procedures.
Sight
Occurs when light enters the eye through the pupil and reaches the lens, the lens focuses light on the retina, the cone and rods called receptor cells change light energy into neural impulses, the neural impulses are sent through the optic nerve to the occipital lobe of the brain.
Smell
The olfactory nerve carries smell impulses from the nose to the brain. A lot of what we taste can be produced by smell.
Constancy
Once we learn to see things a certain way, we tend to see them the same way regardless of a changed condition.
Hearing
Depends of vibrations in the air called sound waves. Sound waves pass through the ear until they pass the inner ear, in which hair cells change the vibrations to neuronal signals. These signals are carried by the auditory nerve to the brain.
Taste
Liquid chemicals stimulate your taste buds. The brain processes information on the texture and temperature of the substance.