Brain activity comparison between young and elderly participants for spatial frequency processing (LSF and HSF).

<p>Abbreviations: BA = Brodmann area.</p><p>The statistical significance threshold for individual voxels was set at P < 0.05 FWE corrected for multiple comparisons (T > 5.23). The Talairach coordinates (x, y, z) of the peak and the spatial extent (k = number of voxels in the cluster) are indicated.