Social contracts and precautions activate different neurological systems: An fMRI investigation of deontic reasoning

Fiddick, Laurence, Spampinato, Maria Vittoria, and Grafman, Jordan (2005) Social contracts and precautions activate different neurological systems: An fMRI investigation of deontic reasoning. NeuroImage, 28 (4). pp. 778-786.

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Abstract

We conducted an event-related, functional MRI investigation of 12 male’s and 12 female’s reasoning about conditional deontic rules, rules regulating people’s behavior. We employed two different types of rules: social contracts and nonsocial, precautionary rules. Although the rules and the demands of the task were matched in terms of their logical structure, reasoning about social contracts and precautions activated a different constellation of neurological structures. The regions differentially activated by social contracts included dorsomedial PFC (BA 6/8), bilateral ventrolateral PFC (BA 47), the left angular gyrus (BA 39), and left orbitofrontal cortex (BA 10). The regions differentially activated by precautions included bilateral insula, the left lentiform nucleus, posterior cingulate (BA 29/31), anterior cingulate (BA 24) and right postcentral gyrus (BA 3). Collectively, reasoning about prescriptive rules activated the dorsomedial PFC (BA 6/8). The results reinforce the view that human reasoning is not a unified phenomenon, but is content-sensitive.

Item ID: 8302
Item Type: Article (Refereed Research - C1)
Keywords: functional MRI; neurological system; reasoning; deontic reasoning; social cognition; evolutionary psychology
ISSN: 1095-9572
Date Deposited: 18 Feb 2010 04:20
FoR Codes: 11 MEDICAL AND HEALTH SCIENCES > 1109 Neurosciences > 110999 Neurosciences not elsewhere classified @ 50%
17 PSYCHOLOGY AND COGNITIVE SCIENCES > 1702 Cognitive Science > 170299 Cognitive Science not elsewhere classified @ 50%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970117 Expanding Knowledge in Psychology and Cognitive Sciences @ 100%
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