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. 2013 Feb 4;7:16. doi: 10.3389/fnhum.2013.00016

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Copyright © 2013 Sip, Carmel, Marchant, Li, Petrovic, Roepstorff, McGregor and Frith.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in other forums, provided the original authors and source are credited and subject to any copyright notices concerning any third-party graphics etc.

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The interaction between response type (true or false) and belief about the lie-detector (on or off). Panels on the left show the activation cluster and panels on the right show parameter estimates in the activation cluster in the right hippocampus/parahippocampal gyrus (A and B) and left temporal pole (C and D). In these loci, the difference between the BOLD activation caused by false vs. true responses was abolished (and for the hippocampus/parahippocampal gyrus, reversed) when participants believed the lie detector was off.