cognition Flashcards
What were Neisser’s three beliefs about perception?
- visuals experiences mirror an external stimulus
- visual experiences starts and ends with the onset and offset of the external stimulus
- visual experiences are reflective of what we are seeing and true, passive copies of the outside world
what is a naive realist?
a person with a tendency to believe our perception of the world reflects exactly how the world is
key example of a naive realist?
Neizzer
Descartes view on perception
dualist
what we see is not exactly what we see
how can we be sure a chair is a chair
all we can be sure of is our capacity to think
what is a bottom-up approach towards perception?
information from stimulus then to different levels of processing until we decided what the process is. information goes from the bottom (stimulus) to higher processing.
what is the law of effect?
the effect of an outcome influences wether the behaviour is repated
e.g., good coneuqnce = repeated more
bad = not
low of exercise
the more a situtaion is followed by the same respnse the stronger the association bond and thus more/less behaviour will be repeated.
Constructivism
people construct their own understanding and knowledge of the world through their experiences and their reflections on those experiences.
watson
physcology is the study of behaviour and psychologists should only study what is obseravble. correlation between stimuli and response. Needs to be measurable.
latent learning
earning without reward. rats just being in a maze allowed them to find they, layout even though they hadn’t been rewarded fir anything
rats given food straight away at end of maze, three days after and 9 days after
reward reduced number of erros learned faster than if the reward was given on the 9th day
rat in t shape maze results
they would use the shortcut because they had understanding of the paths advantages and that it was quicker to gain their reward
rate maze with blocked off paths results
rat knew to go via a different route if a particular route was blocked off suggesting they had a cognitive map
skinner view on language
we make association between things to , learn language.
chomsky on language
doesnt argue for SR bonds
language isnt perfect
you are born to aquire language
language aquisition divice
we are predisposed to learn language
The modularity of mind hypothesis
input modules work on a different feature of that sense. ig input module working on the colour accept of seeing. this is passed onto central processors of thought interpretation. splitting up sensory info into different modules.
what did the gestalt psychologists believe ?
argued visual experiences aren’t copies of the outside world they are experiences of something else we group things together and reorder visual information.
gestalt argued this grouping happens automatically and doesnt require info of images
grouping by proximity?
grouping things close together
common fate
grouping things that are commonly grouped
gestalt 3 month infant study
infants fixated on things that werent already grouped
what is a top down approach
active and knwoeldge driven, experience and empirical
bruner experiment
patterns that are easier to recognise draw on our experiences of the world so we can describe them
epstein and rock
is the way we experience a stimulus influenced by how we’ve recently experienced that stimulus or by what we expect.
results of you and old woman study
most people see it as a an old woman suggesting recency drives perception
Minksys frame theory of perception - role of expectancy
Based on our knowledge of the world we actively generate expectations about what will occur next.
Such ideas are present in both theories of vision and audition.
bruner perceptual readiness theory
need and value determine our perceptions of the world.
bruner readiness study
To alter the size of a spot of light so that it matched a comparison disc.
The disc varied in size and nature.
Generally good estimates of size when the discs were neutral, but this changed dramatically when the discs were replaced with coins.
PP overestimated size of coin with its value. value of coin influenced perception. need has an influence, non rich chidlren had a greater over estimation of the size.
the minimum principle
“We perceive whatever object or scene would most simply or economically fit the sensory pattern”
the likelihood principle
“We perceive whatever object or scene would, under normal circumstances, most likely fit the sensory pattern”
the crude to fine distinction
global vs local prefernce
local information
the detail
global info
the information as a whole
global precedence effect
global info effects local info but not the other way around, we process this information a lot quicker.
iconic memory
the visual sensory memory register pertaining to the visual domain and a fast-decaying store of visual information
visual code
fast
low capacity
flexible decay
not maskable
visual info
name code
moderate capacity
negligible decay not maskable
auditory info
michael posner study
Present a pair of visual letters on a screen, immediately start a clock and wait for the participant to press a response key.
- Are these pairs physically identical
- Do the letters share the same name?
- Are they vowels/consonants?
are the pairs identical findings
took half a second
do the letters share the same name finding
more than half a second, better when they were a visual match
are they vowels or consonants finding
consonants was the slowest response - same responses are faster to vowels, since there is less of them
what are the two possibilities for the visual code?
is it mental pictures and images or is it language describing the features of the image? i.e. structural coding.
mental rotation expeirment
- showed people various orientations of the letter r
- they were able to identify that it was an r if quicker when it was closer to its original orietnation because they can mentally move it
- suggesting we have mental images
learning a map study - what they did
- learn map and draw from memory
- timed
- focus on named plcae on the map then name somwehere else on the map