Answer to Question 1
Answer: Posner's model includes disengaging attention, moving attention, and engaging attention at a new location. Patients with progressive supranuclear palsy had difficulties with moving attention while patients with lesions to the pulvinar had difficulties engaging attention. Together, these findings support the idea that attention moves and engages in processing at a particular location, thereby supporting Posner's model.
Answer to Question 2
Answer: Validly cued objects are processed faster while invalidly cued objects are inhibited or processed slower than uncued objects. These findings tell us that attention facilitates processing target information and inhibits processing of information that is believed to be irrelevant. Page(s) in Text: 118-119
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