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Moral judgment in episodic amnesia.

Carl F Craver1, Nazim Keven1, Donna Kwan2

  • 1Philosophy-Neuroscience-Psychology Program, Washington University in St. Louis, St. Louis, Missouri.

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|March 31, 2016
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Summary
This summary is machine-generated.

Vividly imagining moral scenarios influences judgment, but this effect does not depend on episodic memory or future thinking abilities. This suggests personal imagination, not episodic recall, drives moral judgment biases.

Keywords:
decision-makingepisodic memorymental time travelmoral reasoningprospection

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Area of Science:

  • Cognitive Neuroscience
  • Moral Psychology
  • Neuroscience of Decision-Making

Background:

  • Episodic thought, involving vivid mental time travel to the past and future, is believed to influence decision-making.
  • Previous research suggests healthy individuals exhibit a bias in moral judgment when vividly imagining personal involvement in scenarios.

Purpose of the Study:

  • To investigate the role of episodic thought in moral judgment.
  • To determine if deficits in episodic memory and future thought affect moral judgment biases.
  • To test whether vivid personal imagination's effect on moral judgment is mediated by episodic thought.

Main Methods:

  • Administered a moral judgment battery to individuals with hippocampal damage and episodic thought deficits.
  • Compared moral judgments of individuals with and without episodic thought deficits.
  • Assessed the impact of vivid personal imagination versus abstract imagining on moral judgments in both groups.

Main Results:

  • Individuals with deficits in episodic memory and future thought still make moral judgments.
  • These individuals also exhibit the same biasing effect of vivid, personal imaginings on moral judgment as healthy controls.
  • The observed bias in moral judgment was not dependent on episodic thought.

Conclusions:

  • The biasing effect of vivid personal imagining on moral judgment is independent of episodic thought about the past and future.
  • These findings challenge the notion that episodic memory and future thinking are necessary mediators for this specific moral judgment bias.
  • Suggests that other cognitive mechanisms, such as vividness of imagination itself, may underlie this effect.