PSY111 Lecture Notes - Lecture 5: Remedial Education, Clicker Training, Reinforcement

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30 Jun 2018
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OPERANT CONDITIONING
An easy way to remember the terms:
- Positive always refers to the arrival of a stimulus
- Negative always refers to the removal of a stimulus
- Reinforcement always refers to an increase in the likelihood that a behaviour will recur
(Regardless of whether positive or negative)
- Punishment always refers to a decrease in the likelihood that a behaviour will recur
(Regardless of whether positive or negative)
REINFORCEMENT CONTINGENCIES
Extinction
- Absence of reinforcement of a response leads to extinction of behaviour
Discriminative stimuli
- Stimuli that predict reinforcement or punishment
Generalisation
- Generalising responses to other stimuli that resemble a stimulus
SCHEDULES OF REINFORCEMENT
• The pattern of reinforcer (or punisher) delivery affects the pattern of responding
• Continuous Reinforcement Schedules
• Reinforcer is obtained after every response
• Good for training new behaviour
• Intermittent/Partial Reinforcement Schedules
• Reinforcer is not obtained for every response
• More resistant to extinction, behaviour persists for longer
INTERMITTENT/PARTIAL REINFORCEMENT SCHEDULES
• Ratio Schedules
• Fixed Ratio: Reinforced every nth response
• Variable Ratio: On average, reinforced after every ninth response
• Interval Schedules
• Fixed Interval: Reinforced after specific time period has elapsed
• Variable Interval: Reinforced after an average time period has elapsed
ACQUISITION AND SHAPING
A procedure in which a complex behaviour is trained/taught by reinforcing closer and closer
approximations of the desired response
• Training a dog to fetch the paper
• Teaching a child to tie shoelaces
• ‘Clicker’ training
• Only positive reinforcement
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Document Summary

Positive always refers to the arrival of a stimulus. Negative always refers to the removal of a stimulus. Reinforcement always refers to an increase in the likelihood that a behaviour will recur (regardless of whether positive or negative) Punishment always refers to a decrease in the likelihood that a behaviour will recur (regardless of whether positive or negative) Absence of reinforcement of a response leads to extinction of behaviour. Generalising responses to other stimuli that resemble a stimulus. A procedure in which a complex behaviour is trained/taught by reinforcing closer and closer approximations of the desired response: training a dog to fetch the paper, teaching a child to tie shoelaces, clicker" training, only positive reinforcement. Applications of operant conditioning: behavioural therapy, reducing thumb sucking, reducing tantrums, quitting smoking, behavioural modification, token economies, remedial education, therapy for autism. Cognitive-social theory argues that we form expectancies about the consequences of our behaviours.

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