Table 1.

Summary of experimental manipulations for VSL-based, reward-based, and goal-driven spatial attention

	Manipulation	Nature of the more “important” visual quadrant	Nature of learning
VSL	Target’s location probability	Three times more likely than the other quadrants to contain the target	Incidental
Reward	Target’s reward probability	Associated with three times more monetary reward than the other quadrants	Incidental
Goal-driven	Instructions	Experimenter instructions to prioritize one quadrant for more monetary gain	Intentional