1. Mind and Brain

Question 1

how many neurons in one brain?

Answer 1

100-150 billion

Question 2

each neuron may connect to how many other neurons?

Answer 2

10.000

Question 3

neurons make up how much % of brain cells?

Answer 3

10 %

Question 4

how much % of oxygen en blood does the brain use?

Answer 4

20%

Question 5

do identical twins have identical brains?

Answer 5

no, 3D gyral pattern is determined primarily non genetically

> brain size though is heritable

Question 6

differences in the brain between men en women?

Answer 6

men have larger brains, but women have more folded brains

> surface area is comparable

Question 7

hoe big is V1 approximately?

Answer 7

size of a creditcard

Question 8

hoe big are the cell bodies of neurons appr?

Answer 8

10^-4 m = 0.1 mm

Question 9

how fast can your auditory nerve cell fire?

Answer 9

1000Hz

> once every millisecond

Question 10

at wat point do you percieve a break between hearing and vision in a movie?

Answer 10

starting at a 0.1 second time lag

> 10Hz

Question 11

3 major planes of section

Answer 11

1. sagittal
2. axial (horizontal)
3. coronal (frontal)