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. Author manuscript; available in PMC: 2011 Jan 1.
Published in final edited form as: Neuroimage. 2009 Jul 16;49(1):843–848. doi: 10.1016/j.neuroimage.2009.07.012

Figure 4.

Figure 4

Area under the hemodynamic response curve (AUC) from brain regions showing UCR diminution modulated by UCS expectancy. The magnitude of dorsomedial and dorsolateral PFC activity decreased as UCS expectancy increased (left side graphs). Functional MRI signal responses within these brain regions also showed a linear relationship with unconditioned SCR magnitude (right side graphs). SCR data were separated into 4 UCR magnitude ranges where 0–25 reflects the lowest 25% of the responses, 25–50 and 50–75 represent intermediate range SCR amplitudes, and 75–100 reflects the largest 25% of the SCRs for each participant. Error bars represent standard error of the mean.