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25 Cards in this Set

  • Front
  • Back
stages of skill acquisition
cognitive, associative, autonomous
cognitive stage
declarative knowledge, requires attention.. the best teacher may not be the most skillful but reahter someone who knows how to describe the cognitive stage well
associative stage
strengthens connections that lead to desired result... feedback important, see which actions lead to desired result and get red if actions that lead to errors
autonomous stage
fast, executed with less attention/consciousness, less verbalization and feedback less important, need for consistent practice
ACT
adaptive control of thought
ACT
procedural knowledge... made of production rules... if-then statements
ACT - knowledge compilation
prodecuralization, composition
prodecuralization
take devlarative knowledge and turn into productions
composition
take several productions and join them together into one
response chaining
feedback from one movement triggers the next one... it is incorrect, because movements occur too quickly
motor program
representation of the plan for movement and movement sequences, fast and doesnt require feedback..abstract and heirarchical..abstract high level and specific low level
heirarchical motor program
rosenbaum experiment, measure time between responses, make movement sequences
evidence for subprograms
for longer sequences, more subprograms must be rerieved before bring sent to the muscles
PDP...
emphasizes parallel processes, since serial processing by neurons would be too slow...concepts are in the petterns of connections, not any individual node
ACT-R...
concepts represented by propositions etc... each node represents a concept
types of neurons and connections
inactive, excitatory, and inhibitory
inactive neurons
not excited, does not directly influence others
excitatory neurons
when excited, stimulate other neurons
inhibitory neurons
when excited, inhibits stimulation of other neurons
how PDP says we acquire skills...
learning/skill acquisition... using connections increases their strength... neurons that fire together, wire together
Fitts's Law
size of target
distance from target
defying fitts's law
no penalty for size of target
obeying fitts's law
microsoft places menus on windows
skill acquisition
how does practice turn declarative knowledge into procedural knowledge... through ACT-R and PDP
serial order problem...
how do different parts of a skill get organized into a sequence? motors programs and fitts's law