Someone explain to me about brains.
Discussion
If an animal is bigger, with a bigger head, and presumably a bigger heavier brain what does it do with the extra?
A percentage will be used to control motor functions, and an amount to control thinking.
For instance is a retriever brighter than a jack Russell. Not a thread about dogs or people just relative brain size compared to intelligence.
A percentage will be used to control motor functions, and an amount to control thinking.
For instance is a retriever brighter than a jack Russell. Not a thread about dogs or people just relative brain size compared to intelligence.
Dr Jekyll said:
Most of it is to control functions and monitor the body. Bigger animals need bigger brains to have somewhere for the nerves to plug into. When brain size varies between animals of the same size, then that can tell you something about how much they can think.
Thank you. Dr Jekyll said:
Most of it is to control functions and monitor the body. Bigger animals need bigger brains to have somewhere for the nerves to plug into. When brain size varies between animals of the same size, then that can tell you something about how much they can think.
So how come wayne rooney has a massive heed?There's plenty of evidence to suggest that with even highly reduced brain size some humans with extremely low mental ability can still exhibit extremely high levels of physical capacity.
For example:
https://www.youtube.com/watch?v=M6DLvkVG6tg
For example:
https://www.youtube.com/watch?v=M6DLvkVG6tg
)
te so I have no idea.As others have said, generally the larger the animal the larger the brain as it needs a greater number of neurons to 'plug in' to represent its body.
The bigger measure is the ratio between brain - body mass. Generally (and I mean very generally) the higher the ratio the more intelligent.
Two other main points -
Folding - increases the surface area of the cortex, we do quite well with this and anecdotally the greater the folding the more intelligent (never actually looked this up though). This is very useful due to the way the neurons in the brain are arranged.
Lastly, evolution. Not every animal has a cerebral cortex.
ETA: who knows what these larger brained animals (like the sperms whale) do with the extra grey matter, it may just be there to control a bigger heart and a tail. But extra doesn't mean more intelligence.
The bigger measure is the ratio between brain - body mass. Generally (and I mean very generally) the higher the ratio the more intelligent.
Two other main points -
Folding - increases the surface area of the cortex, we do quite well with this and anecdotally the greater the folding the more intelligent (never actually looked this up though). This is very useful due to the way the neurons in the brain are arranged.
Lastly, evolution. Not every animal has a cerebral cortex.
ETA: who knows what these larger brained animals (like the sperms whale) do with the extra grey matter, it may just be there to control a bigger heart and a tail. But extra doesn't mean more intelligence.
Edited by TommyBuoy on Wednesday 2nd June 15:32
StevieBee said:
Size isn't (always) relevant. Think of it like engines.
A poorly designed and engineered V8 can be slower, less efficient and have less power than a 3-cylinder 1.5 litre turbo motor.
There doesn't seem to be an equivalent of supercharging for brains, not sure if there's an equivalent of higher revs. So not much substitute for cubes.A poorly designed and engineered V8 can be slower, less efficient and have less power than a 3-cylinder 1.5 litre turbo motor.
Dr Jekyll said:
StevieBee said:
Size isn't (always) relevant. Think of it like engines.
A poorly designed and engineered V8 can be slower, less efficient and have less power than a 3-cylinder 1.5 litre turbo motor.
There doesn't seem to be an equivalent of supercharging for brains, not sure if there's an equivalent of higher revs. So not much substitute for cubes.A poorly designed and engineered V8 can be slower, less efficient and have less power than a 3-cylinder 1.5 litre turbo motor.
How u doing said:
Dr Jekyll said:
StevieBee said:
Size isn't (always) relevant. Think of it like engines.
A poorly designed and engineered V8 can be slower, less efficient and have less power than a 3-cylinder 1.5 litre turbo motor.
There doesn't seem to be an equivalent of supercharging for brains, not sure if there's an equivalent of higher revs. So not much substitute for cubes.A poorly designed and engineered V8 can be slower, less efficient and have less power than a 3-cylinder 1.5 litre turbo motor.
Dr Jekyll said:
How u doing said:
Dr Jekyll said:
StevieBee said:
Size isn't (always) relevant. Think of it like engines.
A poorly designed and engineered V8 can be slower, less efficient and have less power than a 3-cylinder 1.5 litre turbo motor.
There doesn't seem to be an equivalent of supercharging for brains, not sure if there's an equivalent of higher revs. So not much substitute for cubes.A poorly designed and engineered V8 can be slower, less efficient and have less power than a 3-cylinder 1.5 litre turbo motor.
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