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. Author manuscript; available in PMC: 2012 Aug 1.
Published in final edited form as: Behav Brain Res. 2011 Mar 4;221(1):237–245. doi: 10.1016/j.bbr.2011.02.045

Figure 3. Sustained and linearly decreasing unconditioned responses.

Figure 3

The upper box plot illustrates sustained BOLD signal responses in the anterior insula both to the shock (solid red) and to the non-delivered shock (open red) across the 16 trials.

The lower box plot illustrates diminishing BOLD signal responses in the posterior insula to the shock (solid blue) and absent BOLD signal responses to the non-delivered shock (open blue) across trials. Error bars indicate 90% confidence intervals.

The brain slices (at x = 8 and z = −4) illustrates medial and insular regions with sustained (red) and decreasing (blue) shock activations, threshold at T > 4.