Activation of Right Ventral Prefrontal Cortex Using a Predictive Cue during Visual Spatial Orienting of Attentional Processes: An fMRI Study
Figure 1
Experimental paradigm. In the Directional task, the visual cue indicates spatial information with a validity of 90%. The cue was illuminated for 100 ms and after the cue-target interval (600 or 1800 ms), the visual target was presented for 50 ms. During the Nondirectional task, a neutral cue was used that provided no spatial information. During the control task, the left or right half of the inner circle in the center of the screen would turn to white upon which the participants were asked press the reaction key. The reaction time was not recorded during this control task.