Posner and colleagues found a double dissociation between people ...

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Posner and colleagues found a double dissociation between people with progressive supranuclear palsy and those with lesions to the pulvinar. How does this double dissociation support his model of attention?
 
  What will be an ideal response?

Question 2

Two important functions of attention is detecting information we need and inhibiting information we do not need. What do Posner et al.'s (1980, 1982) endogenous cuing studies tell us about detection and inhibition?
 
  What will be an ideal response?

[coreycathey]

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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Thank you!

[coreycathey]

Happy to help