week 2: behaviorism Flashcards
behaviorism assumptions
same principles apply to all organisms
no mental explanations
learning = change in behavior
blank slate (tabula rasa)
parsimonious theories: observable and measurable aspects of behavior
classical conditioning
Ivan Pavlov
association of a neutral stimulus with an unconditioned stimulus to produce a conditioned response
Unconditioned Stimulus (UCS)
naturally and automatically triggers
Unconditioned Response (UCR)
unlearned response that occurs naturally in response to the unconditioned stimulus
Neutral Stimulus (NS)
a stimulus that, initially, does not elicit any specific response
Conditioned Stimulus (CS)
Through the process of conditioning, the neutral stimulus (NS) becomes associated with the unconditioned stimulus (UCS) and comes to evoke a response on its own
Conditioned Response (CR)
This is the learned response that occurs in anticipation of the conditioned stimulus (CS) after conditioning has taken place
Operant conditioning
Edward Thorndike en B. F. Skinner
law of effect: the consequences of behavior influence the probability of subsequent appearance of that behavior
shaping
process of gradually teaching and reinforcing a complex behavior by rewarding
chaining
breaking down a complex task into smaller steps and linking them together
extinction
no longer rewarded an decrease over time
schedule of reinforcement
pattern of rewarding behavior
continuous: Reinforcement is delivered after a fixed number of responses
partial: Reinforcement is delivered after a variable number of responses (more resistant to extinction)
Fixed Ratio (FR): Reinforcement is delivered after a fixed number of responses (a rat may receive food after pressing a lever five times)
Variable Ratio (VR): Reinforcement is delivered after a variable number of responses (slot machine might pay out after an average of every five presses, but the exact number varies)
Fixed Interval (FI): Reinforcement is delivered after a fixed amount of time has passed since the last reinforced response (an employee receiving a paycheck every two weeks.)
Variable Interval (VI): Reinforcement is delivered after a variable amount of time has passed since the last reinforced response (checking for important emails)
implication of behaviorism
academic associate with pleasurable feelings
punishment more effective when you know in advance
more likely to learn when actively behave and physically interact
learn more effectively when desired behaviors are identified beforehand
philosophical behaviorism
only observable behaviors indicate mental state
methodological behaviorism
observable behavior is basic of theories