Figure 1.

Absolute magnitudes in hypothetical brain areas (Top three graphs) during passively viewing words, reading words, and generating verbs; difference magnitudes in hypothetical brain areas (Middle three graphs) for reading minus passively viewing words and verb generation minus reading words subtractions; and difference magnitudes in brain areas of interest (Bottom three graphs) for reading minus passively viewing words and verb generating minus reading words subtractions in areas with activations related to motor output (A–C), to generating a verb (D–F), and to simple reading of words (G–I).