Psychology
Chapter 6 Sensation and Perception
Chapter 6 Sensation and Perception
Set of flashcards Details
| Flashcards | 87 |
|---|---|
| Language | English |
| Category | Psychology |
| Level | Primary School |
| Created / Updated | 16.10.2014 / 16.10.2014 |
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types of info processing
bottom-up
top-down
transduction
bottom-up processing responds to
sensation
top-down processing is
perception
necessare in order to convert the physical reality outside of your body into a signal inside of your body
transduction
sensation offers a blueprint by means of transduction onto which perception builds
sensation offers a blueprint by means of transduction onto which perception builds
thresholds
absolute
difference
threshold: you can detect this stimulus 50% of the time
absolute
threshold: minimum diff that enables you to identify one stimulus from another
difference
example of difference threshold
the point at which you can say one lightbulb is brighter than another
when you can identify w a familiar voice versus an unfamiliar voice
subliminal processing
below absolute threshold - less than 50% of the time
example of subliminal processing
billboards
exposure to a stimulus below conscious awareness that can bias your consequent decision/action
prime
priming w secure attachment >>> =
better mood, openness
less awareness bc of decrease in nerve cell firing
sensory adaptation
eyes constantly moving just a little bit, continuous stimulation of receptors
visual adaptation
example of sensory adaptation
having a constant image in front of you, you would only see it blurry, in fragments
habits, tendencies, immediate experience that influences our sensation
perceptual set
this affects how we see/hear/feel/taste
perceptual set
example of perceptual set
nice package actually makes you feel better about purchasing something
NOTE: emotions can bias perception
NOTE: emotions can bias perception
why does perspective matter?
we perceive everything in context
we judge importance of events based on what
context
example of importance of context
where would you be more affected by a loud noise, in your quiet basement or at a baseball game?
when does damage/lesion to occipital lobe prevent people/animals from developing normal perception later on in life
critical period
light energy is transduced in neural signals
vision
how do images appear in your eye
inverted
light energy is interpreted by what
cortex
images are inverted in your eye, reevaluated and understood only when
they are sent to the occipital lobe
parts of the eye
pupil
lens
retina
cones
rods
allows light to enter, controlled by iris
pupil
focuses the light on the retina
lens
tissure on the inner surface of the eyeball, composed of rods and cones, bipolar and ganglion cells
retina
receptor cells good for daylight/detail
cones
receptor cells, good for twilight/peripheral
rods
Vision process starts with
light hitting cones + rods
after the light hits the cones and rods >>>
bipolar cells
bipolar cells >>>
ganglion cells
ganglion cells >>>
optic nerve
optic nerve >>>
thalamuc
thalamus >>>
occiptal lobe
