W8L2 Lecture Notes on Stimulus Control PDF

# 17/9 W8 Lecture 2 ## Stimulus control - Thorndike's law of effect (S-R) - Satisfying outcomes "stamp in" the connection between the Stimulus and response - Stimuli/context (S) → response (R) → satistyly outcome - Instrumental behavior (responses) are "controlled" by stimuli with which th...

# 17/9 W8 Lecture 2 ## Stimulus control - Thorndike's law of effect (S-R) - Satisfying outcomes "stamp in" the connection between the Stimulus and response - Stimuli/context (S) → response (R) → satistyly outcome - Instrumental behavior (responses) are "controlled" by stimuli with which they are associated - Discriminative Stimulus: a signal an action will produce a consequence or outcome ## Skinner's tripartite Contingency (ABC): - Antecedent: Stimulus controlling behavior (Sd) - Behavior: what response is being reinforced/extinguished (R) - Consequence: immediate outcome of behavior (Sr/Rff) ## Stimulus control theory: - Our decisions and actions are controlled by S-R associations we have leaned in the past - Every instance in which we encounter a stimulus or event is different ## Generalisation - The extent to which behavior transfers to a new stimulus. ## Discrimination - The extent to which behavior does not transfer to a new stimulus. ## Factors in Portert for Stimulus control: 1. How effective S is learned about (learnedly related) 2. How similar or different S is to previously learned Stimuli (Performance-related) - Will tk backdoor associate the same as the bedroom door for the dog ## Factors dictating generalisation & discrimination ## Discriminative learning: - Can be learned through training with different schedules of reinforcement. - High pitched vs low pitched tone: Classical example - In presence of high/low pitch tone → throughout the course of learning, both generalisation and discrimination occur ## Generalisation in humans is more complicated - Razran (1939) found words with salivation linked to afterwards both phonologically similar and semantically similar. - More CR to semantically (basis of early) rather physical