« previous next »

Author Question: Posner and colleagues found a double dissociation between people with progressive supranuclear palsy ... (Read 56 times)

fasfsadfdsfa

  • Hero Member
  • *****
  • Posts: 554
on: Jun 20, 2018
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
Reply #1 on: Jun 20, 2018
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

fasfsadfdsfa

  • Hero Member
  • *****
  • Posts: 554
Reply #2 on: Jun 20, 2018
Thank you!


coreycathey

  • Sr. Member
  • ****
  • Posts: 333
Reply #3 on: Jun 20, 2018
Happy to help


« previous next »
 

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

An example of polymorphism: the two colour variations found in the orchid Dactylorhiza sambucina. An example of polymorphism: the two colour variations found in the orchid Dactylorhiza sambucina.
The experiment of Plaxton and his colleagues demonstrated that plants can alter their metabolism in The experiment of Plaxton and his colleagues demonstrated that plants can alter their metabolism in
The greatest bone mass is found around age 30 for both men and women, with the later decline being f The greatest bone mass is found around age 30 for both men and women, with the later decline being f
Sensory Crossover Device for Visually Impaired People Sensory Crossover Device for Visually Impaired People
The double helix structure of DNA The double helix structure of DNA
Core-promoter elements found in focused promoters Core-promoter elements found in focused promoters
Video: Chemical Equilibrium between N2O4 (colorless gas) and NO2 (brown gas)

For a complete list of videos, visit our video library