PSYCH 1X03 Lecture Notes - Lecture 3: Reinforcement, Microsoft Onenote
29 Aug 2016
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Instrumental conditioning: learning about the contingency between a response and its consequence-->voluntary actions. Law of effect: behaviours with positive consequences are stamped in, behaviours with negative consequences are stamped out. Chaining: adding on increasingly complex behavioural requirements for shaping. Over-justi cation effect: newly introduced reward for the previously not awarded task can alter people"s perception of that task: originally have an intrinsic value but now have an extrinsic value. Auto-shaping: learning a contingency by their own without any guidance of the experimenter. Successive approximation: each step of conditioning is followed by a reward. S+/ sd when the contingency is valid ex: can be an environment. S- /s-delta when the contingency is not valid. Extinction can occur if cs/sd is presented many times alone. Fixed ratio schedule: reinforcement after a set number of responses. Variable ratio schedule: reward after random number of responses. Fixed interval schedule: reward on a set of time. Variable interval schedule: reward randomly on mean values https://onedrive. live. com/edit. aspx?resid=ad0acf28d351323d!132&cid=ad0acf28d351323d&app=onenote.
