sensation and perception Flashcards
(45 cards)
Sensation
when we PROCESS AND RECEIVE information from the environment
transduction
the transformation of physical stimuli ➡️ neural impulses thats then sent to the brain
perception
the INTERPRETATION of info from the environment (VASE AND FACES)
bottom up processing
INITIAL processing from sensation
top down processing
identifying a stimulus by our PAST KNOWLEDGE
in-attentional blindness
failing to see visible objects when out attention is directed elsewhere
change blindness
failing to notice changes in the environment (prob bc you are distracted)
selective attention
my ability to focus on one stimulus while excluding other ones
the cocktail party effect
when i can only hear the one voice talking to me when there are many
divided attention
when someone can respond to more than one stimulus
thresholds
the weakest stimulus that an organ can detect
difference threshold
the smallest amnt of change in a stimulus (68°-70°, your difference threshold is 2° because you noticed the change at 2°)
webbers law
the weight thing, where you will notice a change in weight very quickly if the weight is light, but if it is heavy, it will take a lot more weight to notice the change
signal detection theory
like if you are waiting for a text and you think your phone vibrated when it didnt
SA
sensory adaptation, i am constantly stimulated by school every day of my life so i become adapted with deminished sensitivity, in my case with dissociation
what happens when transforming stimulus energies
our eyes receive light energy and transduce
Gustation
the sense of taste
what are the tastes in the gustatory system
salty
sweet
umami
sour
bitter
(5)
where is the primary gustatory cortex?
in the parietal lobe
sensory interaction
that one sense may influence another (the smell of food influences the taste)
what is the sense of smell called?
olfaction
where are olfactory sensors and bulbs
the underside of the brain
proximity
xo xo xo xo
closure
our minds provide closure (the 3/4th circles with the invisible square)