Figure 2: Color-coded activations of left cortex. The figure illustrates the activations of Brodmann areas
in the left hemisphere according to color and intensity, where color represents the cognitive domain and
intensity the number of tasks in the domain activating the area. In this figure, cyan represents language,
magenta represents attention, yellow represents perception and black represents imagery. Overlaying the
single-color images gives the 4-color image in the bottom center. This image contrasts sharply with the
standard picture of localization by domain as shown in the bottom right panel.
Far from supporting the standard notion that cognitive functions are generally localizable
by domain (as illustrated in the lower right panel of figure 2), the data suggest a much
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