In studying the brain of this monkey you discover that the brain is almost 10% larger...

In studying the brain of this monkey you discover that the brain is almost 10% larger than you would expect for primate of this size.

6. What parts of the brain do you most expect to be enlarged and why?

a) What are the disadvantages of this increase in brain size?

b) If the increase is primarily in the prefrontal cortex and V1 area, what advantage would it provide?

c) for increase in the ventral premotor area, what advantage would it provide for the monkey?

Solutions

Expert Solution

6. It's the cerebrum. With evolution the brain development is marked by the enlargement of the cerebrum which make the organism more advanced than the preforms.

a) the increase in brain size has provided some disadvantage that the head size need to be increased for adapting a big brain. The pressure inside the brain also increases. So there are chances for an external injury to affect the brain so fast.

b) in frontal cortex enlargement will helporenin the emotion and expression. The memory will increase. Language, judgement and sexual behaviour increases.

In the development of V1 area the brain will make a correct coordination about the visual fields. It helps in understanding the size and depth of the image formed and helps in understanding the specif features of the image formed.

c) this helps the monkey too make exact movements with the muscle according to the motor stimulation. The muscle cordination increases.

Sydney Mullin answered 1 year ago

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