Author Question: Compare the sensory store, the short-term store, and the long-term store. What will be an ideal ... (Read 205 times)

Engineer

  • Hero Member
  • *****
  • Posts: 527
Compare the sensory store, the short-term store, and the long-term store.
 
  What will be an ideal response?

Question 2

Explain double dissociations and their relevance to understanding memory.
 
  What will be an ideal response?



harveenkau8139

  • Sr. Member
  • ****
  • Posts: 304
Answer to Question 1

The sensory store (iconic store) is the initial repository of much information that eventually enters the shorthand long-term stores. Strong evidence argues in favor of the existence of an iconic store. The iconic store is a discrete visual sensory register that holds information for very short periods. Its name derives from the fact that information is stored in the form of icons. These in turn are visual images that represent something. Icons usually resemble whatever is being represented.

The short-term store is capable of storing information for somewhat longer periods but of relatively limited capacity as well. According to the Atkinson Shiffrin model, the short-term store does more than hold onto a few items. It also has some control processes available that regulate the flow of information to and from the long-term store, where we may hold information for longer periods. Typically, material remains in the short-term store for about 30 seconds, unless it is rehearsed to retain it. Information is stored acoustically (by the way it sounds) rather than visually (by the way it looks).

The long-term store is capable of very large capacity and of storing information for very long periods, perhaps even indefinitely. Some theorists have suggested that the capacity of long-term memory is infinite, at least in practical terms. At present, we have no proof even that there is an absolute outer limit to how long information can be stored.

Answer to Question 2

For the observation of simple dissociation, in which normal individuals have no dysfunction on a particular task but individuals with lesions in a specific site have a specific dysfunctions, many alternative hypotheses may explain a link between a particular lesion and a particular deficit of function. Much more compelling support for hypotheses about cognitive functions comes from observing double dissociations. In double dissociations, people with different kinds of neuropathological conditions show opposite patterns of deficits. A double dissociation can be observed if a lesion in brain structure 1 leads to impairment in memory function A but not in memory function B; and a lesion in brain structure 2 leads to impairment in memory function B but not in memory function A.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

For a complete list of videos, visit our video library