Sensation & Perception Flashcards
Lecture 4 (32 cards)
The five senses
sight, smell, taste, hearing, touch
Sensation
body takes info using senses
Perception
brain understands of what senses feel
Absolute threshold
smallest amount of something
Adaptation
the smallest changes
Light
a type of energy you can see
The eye & its parts
cornea, pupil, Iris, Lens, Retina, Rods, Cones, Optic nerve, blind spot
Rods
cells in the retina that helps you see the dark
cones
help you see colors and details
Information Processing of the retina
brain takes info from senses (understand it, store it, use it later)
Feature detection
cell that recognizes shapes, lines, movements, and patterns.
color
what we see when light reflect objects
color blindness
can’t see certain colors (red & green)
Trichromatic Theory of color
see color because of 3 kind of cones (red, green and blue)
Opponent processing theory
see colors in pair (red/green, blue/yellow, and black/white)
After images
seeing color or shapes after looking away.
sound
vibrations that travel through the air.
The ear & its parts
outer ear, eardrum, middle ear, cochlea, auditory nerve.
Semicircular canals
inner ear that helps with balance
Primary taste
sweet, sour, salty, bitter, and umami (savory/meaty)
pain
a warning signal from our body that something is wrong or could hurt us.
smell
nose detects chemicals in the air and send it to our brain.
Olfactory system
helps you smell (includes nose and brain parts)
Olfactory Cilia
tiny hairs like cells in nose that pick up smells.