TB4 Lecture 4; Decision making and the brain

The main objectives in this lecture are;

  • Expected value v.s expected utility
  • Reward and the brain
  • Temporal discounting
  • Social decision making
  • Heuristics in decision making
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  • Created by: mint75
  • Created on: 25-05-15 17:59

1. What is probability weighting?

  • The tendency for people to strongly prefer avoiding loss than acquiring gains
  • The tendency for people to underestimate the chances of high probability events (a coin toss) and overestimate low probability events (the lottery)
  • The tendency for people to strongly acquiring gains than avoiding loss
  • The tendency for compulsive gambling to start after a traumatic loss type event
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Other questions in this quiz

2. What are the two distinct neural processes in McClure et als (2004) dual-system model

  • 1) Fast, automatic and context dependent; a deliberation based decision 2) slower, controlled and evidence based; an emotion based decision
  • 1) Fast, automatic and context dependent; an emotion based decision 2) slower, controlled and evidence based; a deliberation decision
  • 1) Slower, automatic and context dependent; an emotion based decision 2) Faster, controlled and evidence based; a deliberation decision

3. In a study where a reward was either what was expected or more/less than expected, what was found?

  • When reward was more than expected, there was less DP activation and vice versa in the pFC
  • When reward was more than expected, there was less DP activation and vice versa in the ventral tegmental area
  • When reward was more than expected, there was more DP activation and vice versa in the ventral tegmental area
  • When reward was more than expected, there was more DP activation and vice versa in the pFC

4. What is temporal discounting?

  • The tendency for people to discount rewards as they approach a temporal horizon in the future or the past (i.e., become so distant in time that they cease to be valuable)
  • The tendency for people to discount rewards that occur closely on the temporal horizon i.e available closer to 'now' as they will have higher cumulative effects in the future

5. Which of these is NOT a primary reinforcer?

  • Money
  • ***
  • Food
  • Water

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