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. Author manuscript; available in PMC: 2010 Nov 1.
Published in final edited form as: Neuropsychologia. 2009 Jun 11;47(13):2790–2797. doi: 10.1016/j.neuropsychologia.2009.06.002

Figure 4.

Figure 4

A statistical parametric map (SPM) rendered into standard stereotactic space and superimposed on to cronal sections of a magnetic resonance image (MRI) which is itself in standard space. (a) A comparison of the difference between indeterminate unfamiliar trials versus indeterminate familiar trials with the difference between determinate unfamiliar trials versus determinate familiar trials ([indeterminate unfamiliar - indeterminate familiar] - [inconsistent unfamiliar - inconsistent familiar]) results in activation in right ventrolateral PFC (36, 28, −22; z= 3.65) (BA 47), extending into insula. (b) Condition specific parameter (beta) estimates show that the right PFC is selectively responding to indeterminate unfamiliar trials, where the argument is logically indeterminate and there is no belief-bias information in the conclusion to queue a response. (c) The reverse comparison, the difference between determinate unfamiliar trials minus determinate familiar trials versus indeterminate unfamiliar minus indeterminate familiar trials, ([inconsistent unfamiliar - inconsistent familiar] - [indeterminate unfamiliar - indeterminate familiar]), resulted in activation in left inferior prefrontal cortex (−50, 36, 2; z = 3.17) (BA 45). (d) Condition specific parameter (beta) estimate show that the left PFC is selectively responding to indeterminate familiar trials, where the argument is logically indeterminate but there is belief-bias information in the conclusion on which to base (potentially incorrect) responses.