Subjects’ performance of the fMRI saliency experiment task.

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• Laminar fMRI responses in V1, V2 and IPS. (A) Upper: Normalized CBV responses ( in percent signal change) to the orientation foregrounds in V1, V2, and IPS. Lower: CBV response difference between the 90° and 15° foreground conditions (). Each gray dot represents data from one participant. Error bars represent SEM. *, ** and *** indicate <i>p</i> < 0.05, <i>p</i> < 0.01, and <i>p</i> < 0.001, respectively. D: deep, M: middle, S: superficial. (B) Volume activation maps of the saliency-sensitive response in the foreground ROIs of V1, V2, and IPS for a representative participant. Red lines indicate the boundary between gray matter (GM) and cerebrospinal fluid (CSF). Yellow lines indicate the boundary between GM and white matter (WM). (C) Left: Surface activation maps of saliency-sensitive response ( in percent signal change) in different cortical depths of V1 in a representative participant (same participant as in B). Dashed circles indicate the location of foreground on the cortical
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