Author Question: Posner and colleagues found a double dissociation between people with progressive supranuclear palsy ... (Read 52 times)

fasfsadfdsfa

  • Hero Member
  • *****
  • Posts: 554
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

  • Sr. Member
  • ****
  • Posts: 333
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



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

For a complete list of videos, visit our video library