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. Author manuscript; available in PMC: 2006 Apr 22.
Published in final edited form as: Nat Neurosci. 2005 Jul 10;8(8):1110–1116. doi: 10.1038/nn1501

Figure 3.

Figure 3.

Mean signal changes and SSIs in visual cortex (Experiment 1). (a) Mean signal changes for each area and each of the four conditions were averaged across subjects (n = 10). For each subject, mean signal change was defined as the average of the nine peak intensities of the fMRI signal obtained during visual presentations. Asterisks indicate significant differences (p<.05). (b) Sensory suppression indexes (SSIs) were derived from the data shown in (a). Vertical bars indicate S.E.M.