Mod 5 Flashcards
Sensation:
parts of the environment that the brain uses to create meaning
Perception
processing of stimuli to create a sensory understanding of the world
principle of proximity:
objects close to one another will be grouped together
principle of simularity
objects that are physically similar will be grouped together
principle of closure
we will perceive the object as whole when theres information missing
principle of good continuation
if lines cross each other people will see two flowing lines
principle of common fate
objects moving together will be grouped together
order that light must travel to reach the rods and cones
- cornea
- pupil
- lens
- retina
cornea:
protective outer layer of the eye
pupil:
hole allowing light to enter
lens:
helps to focus light on the photosensitive cells
cones:
high-acuity photoreceptors that process early info about colours
rods
highly sensitive photoreceptors that respond to low levels of light
nocturnal animals would have a high number of ____
rods
_____ is the perception of wavelength
colour
Longer wavelengths create the perception of __
red
Medium wavelengths create the perception of ___
green
short wavelengths create the perception of ____
blue
Occlusion:
when one image partially blocks another. the partially hidden image appears farther than the whole one
Relative height:
objects closer to the horizon seem farther away
relative size:
when two objects are the same size, the one furthest away will take up less space in the retina
perspective convergence:
as parallel lines move away they appear to come closer together
atmospherical perspective:
when far away objects appear hazy and tinted blue
frequency of sound is determined by _____
the rate of vibrations
we perceive higher frequency sounds as ______
high pitched
we hear best between :
1000-5000Hz (range of speech)
When a sound over ___ db reaches our ears it can cause damages in the middle and inner ear
100
sound enters through your
pinna (part of ear you pierce)
Ossicles (3 tiniest bones in body):
malleus, incus, stapes
the oval window transfers vibrations to _____
cochlea (snail shaped sound processor)
basilar membrane
flexible piece of tissue in the cochlea
When something touches you the receptor cells in your skin respond and the message travels up the spinal cord to the ______ of the parietal lobe
somatosensory cortex
merker and meissner receptors:
located near the surface of the skin and respond when an object makes contact then is removed
Ruffini cylinder:
deeper in skin, associated with interpreting stretching of the skin
pacinian corpuscle :
deeper in skin, vibration and texture
we sense both hot and cold temperature changes through ______ in the skin
thermoreceptors
kinesthetic sense
sense of where our bodies are in a space and how to move to accomplish tasks
vestibular sense
balance
