Unit 1 Part 2 Flashcards
cells that convert light energy to electrical signals
photoreceptors
theory that dreams help us sort out the day’s events
Consolidation Theory
the lens that focuses the image behind the retina
farsightedness
What is the color that pairs with blue?
yellow
retinal receptors that are concentrated near the center of the retina
Cones
when a person can’t see one color
monochromatism
the nerve that carries neural impulses from eye to the brain
visual nerve (optic nerve)
What do cones detect?
detect color and detail
this produces chemical messages in olfactory system, but without our conscious perception
pheromones
the minimum stimulus energy needed to detect a particular stimulus 50 percent of the time
Absolute Threshold
a system of ring-like structures belonging to your vestibular system, the system responsible for your sense of balance and directionality of acceleration forces
semicircular canals
this type of hearing loss is caused by damage to the mechanical system that conducts sound waves to cochlea
Conductive Deafness
What wavelength is red?
long
when a person can’t see 2 colors (red or green)
dichromatism
What do rods detect?
shapes and movement
rapid eye movement sleep
REM sleep
a process where visual stimuli are focused into the retina by the lens
Accomodation
the theory that dreams are the brain’s attempt to synthesize random neural activity
Activation Synthesis Theory
sensations of falling asleep or floating
Hypnogogic Sensations
theory that one color elicits the feeling of the opposite color
Opponent Process Theory
the height of the soundwaves
amplitude
the distance from one wave peak to the next
wavelength
a sleep disorder In which normal REM paralysis does not occur instead twitching, talking, or even kicking or punching may occur
REM Sleep Behavior Disorder
our biological clock
circadium rthythm
Detecting colors depends on three sets of opposing retinal processes
opponent process theory
the minimum between two stimuli required for detection 50 percent of the time
Noticeable Difference (difference threshold)
the lens that focuses the image in front of the retina
nearsightedness
the process by which our sensory receptors and nervous system receive and represent stimulus energies from our enviroment
Sensation
What is the color that pairs with white?
black
a disorder characterized by temporary sensations of breathing during sleep and repeated momentary awakenings
Sleep Apnea