Who shalt not kill? Individual differences in working memory capacity, executive control, and moral judgment.

Full Abstract

Recent findings suggest that exerting executive control influences responses to moral dilemmas. In our study, subjects judged how morally appropriate it would be for them to kill one person to save others. They made these judgments in 24 dilemmas that systematically varied physical directness of killing, personal risk to the subject, inevitability of the death, and intentionality of the action. All four of these variables demonstrated main effects. Executive control was indexed by scores on working-memory-capacity (WMC) tasks. People with higher WMC found certain types of killing more appropriate than did those with lower WMC and were more consistent in their judgments. We also report interactions between manipulated variables that implicate complex emotion-cognition integration processes not captured by current dual-process views of moral judgment.

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Author information

Author/s: Moore, Adam B (AB); Clark, Brian A (BA); Kane, Michael J (MJ);

Affiliation: Department of Psychology, Green Hall, Princeton University, Princeton, NJ 08550, USA. amtwo(-atsign-)princeton.edu

Journal and publication information

Publication Type: Journal Article; Research Support, Non-U.S. Gov't

Journal: Psychological science : a journal of the American Psychological Society / APS (Psychol Sci), published in United States. (Language: eng)

Reference: 2008-Jun; vol 19 (issue 6) : pp 549-57

Dates: Created 2008/06/26; Completed 2008/08/28;

PMID: 18578844, status: MEDLINE (last retrieval date: 11/6/2008)

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Cognition - physiology
Decision Making - physiology
Emotions - physiology
Female
Homicide - psychology
Humans
Individuality
Intention

Intention
Judgment - physiology
Male
Memory, Short-Term - physiology
Morals
Reaction Time - physiology
Students - psychology
Task Performance and Analysis

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