rule
rule rule
Session:
1 2 3
display image for session  
rule
rule rule rule rule rule
       
 
 

Agnosia

What is it?
Agnosia is a breakdown in a person's ability to associate an object with its meaning, to recognize objects, people and him/herself. Often people with agnosia suffer from what is known as "perceptual neglect" (hemi-inattention) or the inability to interpret the left side of the environment. Someone with such a disorder can "see" to the left but when they receive information from both right and left simultaneously, they neglect information from the left.


Example
Watch the following introductory videos. Click the video icon when ready.


play video  Transcript 1. Agnosia, cognitive breakdown and perceptual neglect" (hemi-inattention)
<a href="../pages/agnosiaeg.wmv">Download movie</a>

Transcript
What is it? Agnosia is a breakdown in a person's ability to associate an object with its meaning; to recognize objects, people and him/herself.

Often people with agnosia suffer from what is known as "perceptual neglect" (hemi-inattention) or the inability to interpret the left side of the environment. Someone with such a disorder can "see" to the left but when they receive information from both right and left simultaneously, they neglect information from the left. Watch the following introductory videos
Example People with agnosia often "see" only left or right. To illustrate, the sketches on the right (below) represent a typical patient's interpretation of a given image (left).

Agnosia is another example of cognitive break down. It includes what people often refer to as perceptual disorders. A very important one is perceptual neglect or hemi- inattention. It is quite common. For example, I would ask the client to look at my nose and tell me if they see my finger on the right, on the left, or on both sides. They would say "Right", "Left", "Left". So they see perfectly. When I do both sides, they would say "Right." With bilateral stimulation they tend not to pay attention to the left side.That could cause a lot of challenging behaviours and difficult situations. For example, Mr. Cohen is a recent arrival to a nursing home. He's taken downstairs to another unit for physiotherapy. When he comes back upstairs, it seems like a totally different world for him and he can become very agitated and confused - even more so because he is not aware that he doesn't know how to pay attention.It is very difficult to realize that you're not aware of certain things. Now, if the people around him, the care providers, don't have good comprehension, or they don't realize that he's not aware that he's not aware, you have a very confusing situation.


play video  Transcript 2. Tip on communicating with someone who has "perceptual neglect" (hemi-inattention)
<a href="../pages/agnosiatip.wmv">Download movie</a>

Transcript
So what can you do for Mr. Cohen who has perceptual neglect, or hemi-inattention? If you're taking him to another location, make sure that you bring his attention to what's on the left side. By doing so, you're helping him register this new information that he tends not to pay attention to. When he comes back to the original location, the confusing situation will not exist because he's not taken by surprise. The difference here is that the care providers are very much aware that he's not aware that he's not aware, and they're making the appropriate compensations.


 
 
Copyright . Baycrest. All rights reserved.
Terms of Use & Disclaimers