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 the status quo bias?

  • Preference for current state of affairs
  • Presentation of another option that is inferior in all respects has shown to influence preference
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Other questions in this quiz

2. 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

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

4. What did a study by Matsumoto & Hikosake (2009) find?

  • A subset of DP neurons in the midbrain responded to both positive and negative events.
  • A subset of DP neurons in the midbrain responded to positive but not negative events.
  • A subset of DP neurons in the midbrain responded to negative but not positive events.
  • DP neurons will always fire with a pleasing stimulus

5. What is negative reinforcement?

  • Removal of an adverse outcome following a reaction
  • A delivery of an adverse outcome following a reaction
  • Being rewarded explicitly after avoiding a stimulus
  • Being rewarded implicitly after avoiding a stimulus

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