Sensation and Perception

studied byStudied by 13 People
5.0(1)
get a hint
hint

Sensation

1/14

Tags & Description

Studying Progress

New cards
15
Still learning
0
Almost done
0
Mastered
0
15 Terms
New cards

Sensation

  • what you feel/see/ear/taste exp: hear a high pitched noise

New cards
New cards

Perception

-organizing and processing sensory information exp: realizing it's a bird

New cards
New cards

Bottom-Up Processing

-taking sensory information then assembling and integrating it -Exp: you see a slithering creature on the ground..you process... its a snake

New cards
New cards

Top- down

-using models ideas and expectations to interpret sensory information -exp:an experienced hiker, you expect to see snakes on your hike... so sticks, lizards, etc all seem to look like snakes

New cards
New cards

selective attention

-our tendency to focus on just a particular stimulus among the many that are being received exp: cocktail party

New cards
New cards

intentional blindness

failing to see objects when our attention or focus is directed elsewhere

New cards
New cards

change blindness

failing to notice changes in the visual enviroment

New cards
New cards

transduction

converting energy (exp: light waves) into neural impulses 3 steps -receive -transform -deliver

New cards
New cards

absolute threshold

the lowest level of a stimulus – light, sound, touch, etc. – that an organism could detect 50% of the time

New cards
New cards

difference threshold

the smallest amount by which two sensory stimuli can differ in order for an individual to perceive them as different (50% of the time)

New cards
New cards

Signal detection theory

*Signal Detection Theory - a theory predicting how and when we detect the presence of a faint ("signal") amid background ("noise"). Assumes there is no single absolute threshold and detection, depends partly on a person's experience, expectations, motivation, and level of fatigue.

New cards
New cards

Weber's law

-states that to be perceived as different, two stimuli must differ by a minimum percentage rather than a constant amount

New cards
New cards

Subliminal stimuli

not detectable 50% of the time

New cards
New cards

Priming

-using a stimulus like a word, image or action to change someone's behavior. -exp: can be seen if you are presented with the word 'doctor'. A moment later, you will recognize the word 'nurse' much faster than the word 'cat' because the two medical workers are closely associated in your mind.

New cards
New cards

Sensory adaption

-diminished sensitivity to stimuli because of constant stimulatiom

  • exp: can't smell your own perfume

New cards