12. Receiving and Perceiving Sensory Information and Attention Flashcards
Fechner – minimum stimulation needed to detect a stimulus
absolute threshold
a noticeable difference (identifying b/w Sungjin and Brian’s harmonization)
difference threshold
theory predicting how and when we detect the presence of a weak stimulus and extensive background
signal detection
dependent on experience and expectation
signal detection
too quick and too weak to consciously interpret or process, but can affect our thinking
subliminal messaging
pups and werewolves flashed too quickly over a person’s image
puppy/werewolf experiment
converting 1 form of energy to another (light waves and sound waves are a form of energy)
transduction
how can our stimulation be interpreted information?
through bottom-up processing or top-down processing
starts @ sensory receptors then works up –> basically what’s happening is that you quickly label things and run w/ it
bottom-up processing
BOTTOMS-UP!!!!! (just drink alcohol and not think)
bottom-up processing
constructs perceptions form sensory based on experiences/ ourselves
top-down processing
when your mom gives you an top-down look of approval before you leave your house
top-down processing
conscious = focused; unconscious = aware but not focused
selective attention
same as selective attention (like Bob, Brian, and OnePeal harmonizing but focusing on OnePeal)
cocktail party effect
not noticing stimuli when focused on other things
in-attentional blindness