Vocab
Binocular fusion
the process of combining the images received from the two eyes into a single, fused image
How does Sight Work?
Light enters the eye through the pupil in which it travels to the lens. After that, the lens focuses light on the retina. Cones and rods in the retina process this light energy into neural impulses in which then travels to the brain.
Perception
The organization, identification, and interpretation of sensory information in order to represent and understand your environment
How do you treat Conduction Deafness?
This type of deafness can be solved, or helped, by a hearing aid.
Glaucoma
when pressure in the eyes rises above normal levels, which damages the optic nerve. Glaucoma can be controlled with medication and surgical procedures.
Depth perception
the ability to recognize distances and three dimensionality (develops in infancy)
How does Hearing work?
hearing depends on 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 then carried by the auditory nerve to the brain
Constancy
seeing things the same way once we learn to see them. For example, once you know what a door is, you're not gonna think it is something different based on if it is open or closed.
In the context of sight, how do rods and cones work?
change light energy into neural impulses which contacts the brain. Rods work better with less light and shadows.
Conduction deafness
when anything hinders the outer or middle ear, or if the bones become rigid and can’t carry sounds into the ear.
Retinal disparity
the differences between the images stimulating each eye. Nearsightedness and farsightedness are both a result of imperfect retinal disparity. Important in depth perception
How do you detect taste?
Through the taste buds located on your tongue. Taste can also include temperature and pressure.
Stroop Test
Detection thresholds involve recognizing a stimulus against the background of a competing stimuli (shows colors and the words are different colors then what it reads)
What does an objects color mostly depend on?
The light that it reflects
Sensorineural deafness
damage caused by damage to the cochlea, hair cells, or auditory neurons. This can be helped with a cochlear implant, which changes sound waves into electric signals.
Extrasensory perception
the *supposed* ability to gain information by some means other than the ordinary senses
What does touch do?
gives the brain information regarding pressure, pain, warmth, and coldness. We are extra sensitive to touch on our fingertips. Having the ability to feel pain keeps our bodies safe.
Psychophysics
the study of sensory experiences and physical stimuli that cause them
What is the "loudness" of a sound determined by?
Amplitude in which is the height of the sound waves and will determine how LOUD something is
Olfaction
Another word for smell. The olfactory nerve carries smell impulses from the nose to the brain.
Gestalt
the experience that comes from organizing a bit of information into a whole. We tend to see things in patterns and groups, and fill in the gaps to make sense of something
What is the Vestibular sense?
It is regulated by our inner ear and keeps us balanced. Overstimulation of this can cause dizziness.
Monocular depth cue
visual signals that allow the brain to perceive depth and distance using only one eye
What determines pitch in audition?
The frequency (rate) of vibrations. (low = deep bass, high = shrill squeaks)
Gustation