Chapters 13 and 14: Symptoms of parietal and occipital damage Flashcards
What is visual agnosia?
Inability to recognize objects by sight or the inability to draw or copy them.
Visual Agnosia includes…
Object agnosia
Prosopagnosia
What is object agnosia?
The failure to recognize objects.
What is prosopagnosia?
the inability to recognize faces
There are two streams of analysis that start in the striate cortex. What are they?
- Dorsal Stream
- Ventral Stream
What does the dorsal stream help with?
It helps with recognizing where an object is located.
What is the ventral stream help with?
It helps with it recognizing what an object is.
Balint’s syndrome
Includes disorders related to spatial perception
Balint’s syndrome includes three different disorders which are `
- Optic ataxia
- Ocular apraxia
- Simultanagnosia
Optic ataxia
A deficit in reaching for objects under visual guidance. The object is recognized but the movement to reach out is misdirected.
Ocular apraxia
Impaired visual scanning/impaired voluntary eye movement.
Parietal lobe lesions on the left hemisphere can lead to…
Gerstmann Syndrome
Gerstmann syndrome
Includes disorders such as…-
Finger agnosia
-Agraphia
-Acalculia
-Right-left confusion
Finger agnosia
Inability to name or recognize fingers
Agraphia
Inability to write