Skip to main content
. Author manuscript; available in PMC: 2010 Oct 1.
Published in final edited form as: Nat Neurosci. 2010 Mar 7;13(4):507–512. doi: 10.1038/nn.2509

Figure 3.

Figure 3

Stimulus-driven and goal-directed attention activity in Experiment 1. A) Dorsal brain regions active during Search trials. B) Surprise stimulus-specific waveform in dorsal (FEF, IPS) and ventral (IFJ, TPJ) regions of interest (ROIs) defined in individual participants (See Methods). Each time course was constructed by subtracting the Search trial time course from the time course for the first two Surprise Stimulus trials. The Surprise stimulus appears at approximately time zero. C) Search trial time course over the same period of time for the same ROIs. Arrows mark each trial's onset. Note that the activation pattern is cyclical, mirroring the trial structure (one trial every eight seconds). The observed hemodynamic responses match the predicted responses for the hypothesized neural activity in each region (see Supplementary Fig. 3).