Learning 4-5-6 Flashcards
(153 cards)
What is instrumental conditioning?
In instrumental conditioning, the behaviour causes the presence or absence of a stimulus.
The stimuli encountered are a result of the organism’s behaviour, contrasting classical conditioning where the stimulus is presented regardless of the organism’s actions.
How does instrumental conditioning differ from classical conditioning?
In classical conditioning, the stimulus is presented regardless of the organism’s actions, while in instrumental conditioning, responses produce a desired outcome.
Instrumental conditioning is often termed ‘operant conditioning.’
Who conducted early investigations into instrumental conditioning?
Edward Thorndike.
Thorndike was interested in animal intelligence and used puzzle boxes to study this.
What is the Law of Effect?
If a response in the presence of a stimulus is followed by a positive event, the association between the stimulus and response becomes strengthened.
Conversely, if followed by a negative event, the association weakens.
What are discrete-trial procedures?
Discrete-trial procedures involve conducting trials where the subject has limited opportunities to respond, scheduled by the experimenter.
Examples include maze trials where a rat must reach a goal box.
What is the main difference between discrete-trial and free-operant procedures?
In free-operant procedures, the subject is not removed after each trial, allowing for continuous behaviour.
This contrasts with discrete-trial procedures where the subject can only respond during specific trials.
What is a Skinner box?
A Skinner box is a device that allows the study of free-operant behaviour, containing a lever or key that can be pressed or pecked for food.
It helps in measuring operant responses continuously.
What is response shaping?
Response shaping is the reinforcement of successive approximations toward a desired behaviour.
For example, gradually rewarding more complex actions in a training scenario.
What are the four basic instrumental conditioning procedures?
The four procedures are:
* Positive reinforcement
* Negative reinforcement
* Positive punishment
* Negative punishment
Each procedure affects the rate of responding differently.
What is positive reinforcement?
Positive reinforcement occurs when instrumental behaviour produces an appetitive stimulus, increasing the rate of responding.
For example, giving a dog a treat for sitting.
What is negative reinforcement?
Negative reinforcement occurs when instrumental behaviour results in the absence of an aversive stimulus, increasing the rate of responding.
An example is banging on a wall to make a noisy neighbour quieter.
What is positive punishment?
Positive punishment occurs when instrumental behaviour produces an aversive stimulus, decreasing the rate of responding.
An example is being criticized by a boss for lateness.
What is negative punishment?
Negative punishment occurs when instrumental behaviour produces the absence of an appetitive stimulus, decreasing the rate of responding.
An example is putting a child on time-out, removing fun activities.
What does it mean that a behaviour cannot be reinforced?
A behaviour cannot be reinforced if it is not naturally linked to that reinforcer.
Thorndike’s experiments showed that yawning could not be conditioned as it was not linked to escaping a puzzle box.
What is necessary for a behaviour to be reinforced?
A behaviour cannot be reinforced if it is not NATURALLY LINKED TO THAT REINFORCER.
What did Thorndike’s experiments with cats demonstrate?
He was unable to condition yawning as an instrumental behaviour to open the puzzle box.
What activates the behaviour system related to a stimulus?
The presence of a stimulus (e.g. food) activates the behaviour system related to that stimulus (e.g. foraging and feeding).
What happens to self-care responses during food deprivation in hamsters?
They decrease in probability, while environment-directed activities, such as digging and scrabbling, increase.
What determines the success of instrumental conditioning?
The nature of the REINFORCER, including its quality and quantity.
What did Trosclair-Lasserre et al. (2008) find regarding social attention as a reinforcer?
Social attention was an effective reinforcer for a 5-year-old boy with autism.
What was the pattern of responses required by the boy in the study?
The boy had to make an increasing number of responses to receive the reinforcer.
What effect did the magnitude of the reinforcer have on instrumental responses?
The instrumental responses were strongest when the reinforcer was of a big magnitude.
What is the BEHAVIOURAL CONTRAST EFFECT?
A big reward is treated as especially good after reinforcement with a small reward and a small reward is treated as especially poor after reinforcement with a large reward.
What are the two types of relationships between a response and a reinforcer?
- Temporal relation
- Causal relation