Exam 1 Flashcards
What are the modern assumptions of cognitive psych?
1) mental processes exist
2) humans are active info processors
3) time and accuracy measures show how processes and structures work
4) humans are limited processors of info
Who first proposed that the mind’s perspectives are actually a function of the state of nerves in the brain
Johannes Muller
Approach that says humans not only respond to stimuli, but process the information they receive
Information-Processing Theory
term for degree of abstraction useful in describing an operation (ions, nuclei in the brain) ( movement of electrons, circuit diagrams in computers)
level
Types of information processing (what the brain is doing at a level of analysis):
storage, manipulation, transformation
States that the description at one level can’t be replaced by description at another level (not interchangeable)
critical notation
related positive pairs pair the fastest
Semantic Priming
normal target conditions related to similar words faster than nonword (abnormal primes)
Response Priming
Specifying the correct combo of structures involved and the processes needed for a trait
Identifiability
whether a theory is valid, following the test
Adequacy
limits the structure-process trade-offs so that representations are processes aren’t modified too much
Constraints
Modern cognitive researches uses these 2 main methods:
1) systematic experimentation (using operational definitions)
2) control of confounding factors
Data sources for cognitive psych
1) Phenomenological (experience)
2) Correlational neural methods ( blood flow recordings)
3) Causal neural methods (tumor, brain area removed)
4) Chronometrics (reaction times, neuroimaging)
5) Accuracy (precent correct)
Three difficulties in measuring RT and accuracy data:
1) Expectancy effects
2) Structure-process trade-offs
3) Speed-Accuracy trade-offs
Human patterns of cognition are not passive but….
Active
Is positive or negative info processed better?
positive
The initial process of detecting and coding (ambiguous) environmental info
sensation
result of psychological processes where meaning, relationships, context, judgements, experiences, and memory play a role
perception
Common problems with perception
TMI- too much info
TLI- too little info
processing that begins with stimulation of receptors
bottom-up
processing begins with prior knowledge or expectations that modifies initial response
top-down
type of nervous system coding where different stimuli alter the activity of different neurons
spatial coding