Friday, May 23, 2014


Operant Conditioning 
  • A type of learning in which behavior is strengthened if followed by reinforcement or diminished if followed by punishment. 
Classical VS. Operant 
  • They both use acquisition, discrimination, SR, generalization, and extinction.
  • Classical Conditioning is automatic (respondent behavior). Dogs automatically salivate over meat, then bell- no thinking involved. 
  • Operant Conditioning involves behavior where one can influence their environment with behaviors which have consequences. (Operant behavior).
The Law of Effect 
  • Edward Thorndike
  • Law of Effect: rewarded behavior is likely to recur. 
B. F. Skinner 
  • Comes up w/ a term - Shaping: a procedure in Operant Conditioning in which reinforcers guide behavior closer and closer towards the goal. 
Reinforcer 
  • Any event that STRENGTHENS the behavior it follows.
  • Two types if Reinforcement: positive & negative. 
Positive Reinforcement 
  • Strengthens a response by presenting a stimulus after a response. 
Negative Reinforcement 
  • Strengthens a response by reducing or removing an aversive stimulus. 
Primary Reinforcer 
  • An innately reinforcing stimulus 
Conditioned (secondary) Reinforcer 
  • A stimulus that gains it reinforcing power through its association with a primary reinforcer. 
Punishment 
  • An event that DECREASES the behavior that it follows. 
  • Does punishment work? 
Continuous Reinforcement 
  • Reinforcing the desired response every time it occurs.
  • Ex: putting money into a vending machines, food comes out.
Partial Reinformemt 
  • Reinforcing a response only part of the time. 
  • The acquisition process is slower. 
  • Greater resistance to extinction. 
Fixed - Ratio Schedules 
  • A scheduled that reinforces a response only after a specified number of responses. 
  • Ex: I give Cookie Monster a cookie every give times he sings "C is for cookie". 
Variable-ratio Schedule 
  • A schedule if reinforcement that reinforces a response after an unpredictable number of responses. 
  • Ex: I give Homer a donut at random times when he says "DOH!!!" 
Fixed - Interval Schedule 
  • A schedule of reinforcement that reinforces a response only after a specified time has elapsed. 
  • Ex: I give Bart a Butterfinger even minutes after he moons someone. 
Variable - interval Schedule 
  • A schedule of reinforcement that reinforces a response at unpredictable time interval. 
  • Ex: Pop Quizzes. 

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