what is the behavior changes of operant conditioning?
behavior changes as a result of consequences that follow it
what are the differences between classical and operant conditioning?
classical: focuses on elicited (involuntary) behavior
operant: focuses on emitted (voluntary) behaviors
what is operant conditioning?
the process whereby organisms learn to make responses in order to obtain or avoid certain outcomes. is really a three part association (SRO).
what is instrumental learning?
organism’s behavior is instrumental in bringing about certain outcomes
what is thorndike’s law of effect?
“affect of consequences on future behavior”
1. responses followed by a satisfying (unsatisfying) consequence becomes more (less) likely to occur
Describe SRO
S: discriminative stimulus (context)
R: response
O: outcome
- this knowledge guides future behaviors
What is the R that is learned in SRO?
Describe S in SRO
What is the straight runway procedure?
(instrumental conditioning) Animal is put in a start box, has to go down a straight alley to reach the goal box w/ reinforcement.
what measures are in the straight runway procedure?
latency: slowness, how long it takes the animal to learn. as learning occurs, latency decreases
speed: as learning occurs, speed increases as animal goes down alley faster
what is the T-Maze paradigm?
Rats are put in a maze shaped like a T. They are placed in the bottom. Food is on one side of the T. Rats have to figure out which direction to turn over a series of trials.
what measures are in the T-Maze paradigm?
What is the skinner box?
(operant conditioning)
1. animal is placed in a ‘free’ chamber, no experimenter intervention
2. context (S): light that signals box is on
3. behavior (R): rate of lever pressing
4. outcomes (O): food delivery (reward) or shock (punishment)
What is shaping?
(operant conditioning)
shaping through successive approximation builds a complex R incrementally. Reward for each step you take (potty-training)
What is chaining?
(operant conditioning)
chaining builds complex R sequences by linking together SRO conditions
(building complex behaviors, like dog obstacle courses)
define reinforcement
response strengthened by consequence that follows
*something can’t be a reinforce if the person doesn’t perceive it as a reward
define punishment
response weakened by consequence that follows
define primary reinforcers
stimuli that organism finds reinforcing because they satisfy biological needs (e.g. food, drink)
*things you do not have to learn to find rewarding
define secondary reinforcers
acquire reinforcing properties through association with primary reinforcers (e.g. money, praise)
*just the opportunity to engage in behavior can also be rewarding. doesn’t have to be things (ex. hanging out w/ friends, skiing, go out to play)
define positive reinforcement
occurs when a response is strengthened by the presentation of a stimulus (the positive reinforcer) that follows it
*something good is added
define negative reinforcement
response strengthened by removal (or avoidance) of an aversive stimulus (the negative reinforcer)
*something undesirable is taken away
*always strengthens behavior
True or False: You can have positive and negative reinforcement at the same time
True
Provide examples of negative reinforcement
describe escape learning
consequence of behavior is terminating an already present aversive stimulus
*the aversive thing is happening right now