Figure 4.

Percent signal change in selected voxel clusters to illustrate group by task condition effects. (A) Regions with positive saliences show a stronger hemodynamic response for TBI patients in the single-feature and baseline conditions relative to the other two conditions. *= Significantly greater response than in single-feature and baseline conditions. ∼ = Marginally significantly greater response than in single-feature and baseline conditions. Letters and coordinates correspond to peaks specified in Table 2. (B) Selected regions with negative saliences show a greater hemodynamic response for TBI patients than controls on either the multi-feature or the redundant condition. *= Significantly greater response in TBI patients than controls. Letters and coordinates correspond to peaks specified in Table 2.