final review (U5) Flashcards
sensation
detect energy (stimulus) from environment into neural signals
perception
- select/organize/interpret our sensations
top-down processing
conclusions based on expectations
bottom up processing
analysis required to interpret
inattentional blindness
- not recognizing monkey walking behind a group of fighting people
change blindness
- not noticing change of person when focused on completing a task
subliminal threshold
- stimuli is below absolutes thresholds for conscious awareness
webers law
- minimim percentage to notice a difference (threshold)
signal detection theory (SDT)
-cocktail party effect
- hearing friends voice amidst background noise
phototrasnduction
conversion of light energy to neural impulses
cornea
light enters the eye
iris
expands and contracts pupil to change size of opening for light
- dark expands
lens
focus and adjusts light on retina
retina
rods and cones
optic nerve
neural impulses to eye to brain
blind spot
no receptor cells
fovea
central point in retina where cones cluster
trochromatic theory
HELMHOLTZ
- retina has three receptors (RGB)
form perception
figures and ground
interposition
objects that block objects appear to be closer
phi phenomenon
lights flashing produces illusions of motion
autokinetic effect
light in dark seen as moving
stroboscopic motion
- flip book and stop motion
ponzo effect
distance bc of lines at bottom and top
ames room
size-distanceillusion
intensity
- loudness
- measured by decibels
- amplitude (loudness) height of sound
outer ear
- collects sounds
middle ear
- hammer, anvil, stirrup (HAS)
- between eardrum and chochlea
cochlea
- coiled, bony, fluid filled tube
