Term
|
Definition
Retina>LGN>IV Primary visual cortex>split to two>temporal lobe and parietal lobe
All parvocellular and some magnocellular |
|
|
Term
|
Definition
Retina>Superior colliculus>Pulvinar>Split into two > lateral to temporal and medial to parietal
All magnocellular |
|
|
Term
What is the How?
and what does it control |
|
Definition
The parietal - Doral stream
visual guidance of movements
|
|
|
Term
What is the What area?
What does it do? |
|
Definition
The temporal ventral stream
visual perception |
|
|
Term
| What respondes to catagories of shapes and objects? |
|
Definition
| The neurons in the temporal lobe |
|
|
Term
What is the theory that emphasizes the importance of pairs of colors
what pecentage of the cells are color sensitive? |
|
Definition
Opponent process theory
60% |
|
|
Term
| What is an ocular dominance column? |
|
Definition
| a column in the visual cortex maximally responsive to information coming in from one eye |
|
|
Term
| What are two causes of colorblindness |
|
Definition
1. absence of either medium or long wave lenght receptors
2. if you are missing 2 types of cones you don't see any color |
|
|
Term
| Describe a cortical column |
|
Definition
| It is an organization characterized by 6 layers and perpendicular to the cortical surfacde |
|
|
Term
| What are some of the names for the vision center |
|
Definition
| Primary visual cortex - V1 - striate cortex |
|
|
Term
|
Definition
| It is color sensitive neurons that are revealed by staining for cytochrome oxidace |
|
|
Term
| If you have damage to the V4 what happens |
|
Definition
|
|
Term
| If you have damage to the parietal lobe what happens |
|
Definition
| grasp problems how to pick something up |
|
|
Term
| The How....give details, name, what it does |
|
Definition
It is the dorsal
Parietal
an online analysis to make accurate movements in relation to objects |
|
|
Term
|
Definition
Temporal lobe
object identification
Ventral |
|
|
Term
| What is homonymous hemianopia? |
|
Definition
| blindness in an entire l/r visual field |
|
|
Term
|
Definition
| a damaged visual field. a small spot |
|
|
Term
| What is the receptive field hierarchy |
|
Definition
Ganglion cells>LGN>V1
many ganglion cells convert to fewer lgn which converts to one cell in the V1
The message gets condensed as it travels |
|
|
Term
| What are cells along the midline of the receptive fields connected by? |
|
Definition
|
|
