Imagine that researchers have developed a drug that (temporarily)disrupts a person's ability to focus his or her attention.Let's say that we give this drug to someone,and then ask that person to search through various displays,looking for certain targets.We would expect the drug to

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The drug that disrupts a person's ability to focus would likely result in more disruption in searching for a target defined by a conjunction of features, such as "Find the shape that is red and round." This is because searching for a target defined by a conjunction of features requires more attention and is a more complex task than searching for a target defined by a single feature, such as "Find the red shape." Therefore, the drug would likely have a greater impact on the ability to search for targets defined by multiple features.

Imagine That Researchers Have Developed a Drug That (Temporarily)disrupts a Person's