Generalization Flashcards
Generalization
The tendency for a behavior to occur in situations different from the one in which the behavior was learned
Stimulus generalization
Is mistaking a SIMILAR stimulus for the one you have learned to respond to
Discrimination
The tendency for a behavior to occur in situations that closely resemble the one in which the behavior was learned, but not in situations that differ from it
- It is the opposite of generalization
Discrimination Training
(Pavlov)
- Pavlov would expose his dogs to the sound of a bell (CS+) and then pair with food (UCS).
- To foster discrimination, he would also generate the sound of a buzzer (CS-) but would NOT pair it with food.
- When the dog learned only to salivate (CR/UCR) in response to the bell, discrimination training was complete.
Discrimination Training
(Skinner)
Skinner would train his rats to recognize that they would ONLY receive a food pellet when the light (S+) was turned on (discriminative stimulus).
- Pressing the lever without a light (S-) would NOT be reinforced
He made this MUCH more complicated and different discriminative stimuli would signal different reinforcement schedules.
- Blinking light = fixed ratio
- Solid light = variable ratio
Stimulus control
If an animal or human has learned to properly discriminate, then we say their behavior is under “stimulus control.”
Examples :
- ALL of us are under stimulus control when we drive (think of the traffic lights and how we associate specific colors)
Stimulus Generalization Example (Pavlov)
Pavlov trained dogs to respond to the sound of a tuning fork, but he noticed that when he used a different pitch fork, the dogs still responded
- They had to LEARN which specific sound they were supposed to react to
Generalization Example (Maurice)
Maurice (2005) noted that Inuit sled dogs mistook a little boy for a seal (he was pretending to hunt seals and was lying on an ice flow) and killed him
Generalization in Real Life
Stereotypes are perhaps the best example of generalization!
- We assume all “x group members” are the same.