lec14Ambivalence09%26PunishA

lec14Ambivalence09%26PunishA - Lecture 14 (3/17/09)...

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Unformatted text preview: Lecture 14 (3/17/09) Voluntary behavior, self- harm, self-control, and the individual responsibility in a deterministic world Self-harm: disease or reinforcement principles? Delay of reward and ambiguous reward contingencies A contingency based account of self-harm and self- control (delay functions) Punishment (briefly) If time: the question of individual responsibility Paradoxes of voluntary behavior: Behaviors that are regretted, yet repeated Poor health habits Procrastination Self-destructive drug use Can we make sense of these behaviors? Economists: No Cognitive mistakes? This approach fails to explain habitual bad habits Disease (compulsivitynon voluntary) If laws of behavior exist, reinforcement principles should explain irrational voluntary actions Two features of reinforcement help explain self-destructive voluntary activities Substances and activities that function as reinforcers are not necessarily good for us in all circumstances Examples from the world of food (sweet, fatty, salty stuff) The way in which the strength of a reinforcer changes in time leads to impulsive behaviorsee next few slides A corollary of the analysis that follows is that contingencies of reinforcement are ambiguous.to be explained How does delay to reward influence reward value? We can use class data on preferences for $100 vs. a delayed $115 from Tuesday to answer this question Preference as Function of Delay Preference for $115 vs $100 (BC Psych 110, Spring 09) 0% 20% 40% 60% 80% 100% All Students Preferred $115 48 Students Preferred $100 Now to $115 in 1 M $100 vs $115 now $100 now vs $115 in 1 month Preference as Function of Delay Preference for $115 vs $100 (BC Psych 110, Spring 09) 0% 20% 40% 60% 80% 100% All Students Preferred $115 48 Students Preferred $100 Now to $115 in 1 M 86 students preferred $115 $100 vs $115 now $100 now vs $115 in 1 month $100 in 60 ms vs $115 in 61 ms Delay on Left Side (sec)...
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lec14Ambivalence09%26PunishA - Lecture 14 (3/17/09)...

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