Topographic Maps and Layering Flashcards
1
Q
Why do we need colour vision?
A
Helps in object recognition
2
Q
Why do we have three types of cones?
A
To respond to 3 colours
Blue, red and green
3
Q
What do the different types of cones activate?
A
Different populations of bipolar cells
4
Q
Where are the majority of the green cones?
A
At the top of the retina
5
Q
Where are the majority of the blue cones?
A
At the bottom of the retina
6
Q
Why are the blue and green cones in the places they are?
A
To respond to the different colours of light, if blue light comes from the top, this activates the bottom part of the retina, where the blue cones are (same for green coming from the bottom)
7
Q
Colour-opponent ganglion cells
A
The light that optimally activates the centre and the surround of the cell are different colours
