Figure 5.

Normalized BOLD response to the stimulation of central region in unifocal and multifocal conditions of Experiment 1. Responses for subjects 1 and 5 are projected on the unfolded surface model and smoothed with Gaussian kernel (σ = 1.5 mm). Magnitude and extent of the response is evidently larger in unifocal condition. We also calculated the number of above‐threshold voxels forming the corresponding cluster in 3D space. For Subject 1, the cluster consisted of 217 voxels in unifocal condition and 53 voxels in multifocal condition. For Subject 5 the corresponding numbers were 146 voxels in unifocal, and 14 voxels in multifocal condition.