psych unit 4 Flashcards
sensation
our sensory receptors and nervous system receive stimulus from our environment
-from our sense organs: touch, see, smell, taste, hear
perception
process by which the brain organizes and interprets sensory information, enabling us to recognize meaningful objects and events.
bottom-up processing
start with sensory receptors and works up to the higher levels of processing
-no prior knowledge
top-down processing
start with higher level processing: draw on experience and expectations
-having prior knowledge
selective attention
the focusing of attention on selected aspects of the environment and blocking out other things.
“cocktail party phenomenon”
ability to focus on just one conversation ignoring other stimuli
ADHD
focusing on all stimuli in the environment
-almost impossible to process information correctly
inattentional blindness
failing to see visible objects when our attention is directed elsewhere
-walking into clear glass door while on the phone
change blindness
failing to notice changes in the environment
-person swap being obvious
pop out
we notice an angry face in a crowd rather than a happy face
transduction
conversation of one form of energy into another
absolute threshold
the minimum stimulation needed to detect a stimulus
-how far away can you see a candle burning
signal detection theory
predicts when we will detect weak signals
-know you are getting a call soon, think you are hearing it but not
subliminal
below ones absolute threshold for conscious awareness
-putting inappropriate things in kids movies
priming
activation, often unconsciously, of certain associations predisposing ones perception, response, or memory
-tiktok
