Operant Conditioning Flashcards
Instrumental/Operant Conditioning
The ability to learn about the relationship between behaviors and consequences
Procedures of Operant Conditioning
A phenomenon (change in behavior after learning) is a change in behavior after experiencing the procedure (the actual conditioning/learning)
The procedure of operant conditioning:
1. Environmental Context
2. A behavior in that context
3. An event that follows that behavior (consequence)
Removal or presentation of consequence
Appetitive or aversive events
First Instrumental Conditioning Experiments
Thorndike: Cat in a Box, Chicks in a Maze
BF Skinner: Eating Reflex
Cat in the Box
“Helping hands of instinct”, credited with the first published experiment on instrumental learning.
He said that the reason that the animal could get out of the box was that they had instinct → natural instinct to explore
Chicks in a Maze
The mazes were constructed from bookends
Over repeated trials, the time to escape decreased
The mazes are now used as a memory task
BF Skinner: Eating Reflex
Motivation to eat; seize, chew, and swallow
Driven by olfaction, visual and tactical
Strength of the eating reflex
He thought that eating was an innate reflex (not true)
In his view, we are a product of our environment
This sparked the experimental design
Shaping by Successive Approximation
This means that we are rewarding behaviors as they get closer and closer to the final/target behavior
We start our broad and then offer rewards for anything
Ex: Kicking a ball in the direction of the goal, then getting rewarded. After that behavior, we then only reward when the ball is kicked into the goal. Then we move on to only rewarding when the ball is kicked into a specific corner
Backward Chaining
The last action in the sequence is trained first and each preceding action is added one at a time until the entire chain of actions is performed
Ex: We have the kid learn to kick the ball into the goal. Then they have to back up and learn to kick the ball from the midline. Then they have the backup and kick it from the other goal dribble it to the midline and kick it into the goal
Reinforcer
A stimulus/event that has the ability to produce a change in the strength of a reflex or behavior by virtue of its relationship to the CS
Reinforcement
An event that increases the rate or probability of occurrence of that behavior when that event is either presented, removed, or canceled following that behavior and the procedure of arranging the temporal relationship between behavior and reinforce
Positive Reinforcement
A procedure that increases the probability of behavior by presenting a positive reinforcer
Appetitive events/rewards
Negative Reinforcement
A procedure that increases the probability of behavior through removing or canceling a negative reinforcer
Negative reinforcers include the removal or canceling of aversive events
Primary Reinforcer
function as reinforcers with little or no experience required
Food, water, sex, pain, social interactions (ex: attention, smiling)
Secondary Reinforcer
function as reinforcers as a result of experience, typically the result of pavlovian conditioning
Money: value determined by its “exchange rate” in the future
What does it give you in the future
What can it get you such as $1 gets you a candy bar whereas $20 will give you a mean
Ex: working to be able to sit in specific chairs in the classroom in order to sit next to their friends (relates to social interaction)
The chair itself is not a primary reinforcement so it is a secondary reinforcement
Learning is based on…
Gradual increases in strength of something as a result of repeated experiences
Strength is reflected in the rate of occurrence or reduction in error
resistance to extinction
If a behavior that continues to be followed by an otherwise effective positive reinforcement becomes less effective, frequent, or persistent, then it would be inappropriate to describe that reinforcement as originally strengthening that behavior
We should see a gradual increase in learning
Resisting extinction is also an indication of the learning
Ex: kicking the ball into the goal even without anyone around and without praise