Biology Stack Exchange
Biology Stack Exchange

Questions tagged [brain]

The primary component of the central nervous system, which, along with the spinal cord, controls the body of bilaterally symmetrical beings.

Questions should relate to the structure, physiology, and other biological aspects of the brain. Questions on psychology or health are generally off topic.

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Are we naturally born right or left handed or ambidextrous?

Most of you here will be right or left handed. A few might be ambidextrous. But were we born that way? I'm wondering if everyone was born ambidextrous, but as they grew up became more dependent on one hand, and that hand after more use now has…
Beastly Gerbil
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Is there any size limit to the amount of information a human (or other) brain can hold

Im not sure how this would ever be tested but is there a limit to how much the brain can 'hold' before it reaches capacity ? I guess this could also be interpreted in terms of memory, as how well some one remember something before reaching capacity…
sam
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Are Whales More Intelligent Than Humans?

Are Whales smarter than Humans? Their brain size leads me to think so.
Jake Soleri
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Why temporal lobe is called temporal?

http://en.wikipedia.org/wiki/Temporal_lobe Does this have something to do with tempo (time?) Temporal lobe is behind (posterior) to frontal lobe, inferior to parietal lobe and is in front of occipital lobe. Why it's called temporal?
user4951
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How is consciousness linked to the brain?

Could the brain be working without consciousness? Does the brain interact with consciousness? Alternately, is it that consciousness can't really control the brain, and you only have the impression that you make the decisions, but your brain does. If…
Someone
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What is the average volume of the hippocampus?

I'm trying to find any information on sizes of the hippocampus? Ideally in the average adult male & female brain
Mark
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Do human neurons in a petri dish do different things from chimpanzee neurons

I want to know if qualitative experiments have been done growing chimpanzee neurons and human neurons in vitro and have any differences emerged, such as the amount of connections per neuron or anything else.
Uri
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How Behind is the Human Mind (Latency of the Senses)

I would like to know if there is any research into the latency of human perception. Particulary: What is the minimum time for various inputs (vision, touch, sound) to be recognized by the conscious mind? How different are these times? (Loud sound…
CGP Grey
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What will be the deficits when left half of the brain is removed in adults?

Hemispherectomy is a surgical procedure to remove half of the brain. It is typically done on children with severe epilepsy. What will be the deficits when left half is removed in adults? Is aphasia a certain outcome in case of left hemispherectomy…
edcvfr
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Is the structure of human brain white matter fixed at/near birth?

I have been reading that, with exceptions for a few parts of the human brain, no neurogenesis occurs, so no new neurons are created. I have also heard that no new axons are formed through the white matter of the brain after birth as well. I also…
Cort Ammon
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Why do we have two brain hemispheres?

Is there any explanation why we have two brain hemispheres? Is there any advantage of having two in contrast to having one (or three / four)? From what I've read so far (not too much; I'm not a biologist) each half can take the job of the other half…
Martin Thoma
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Brain response frequencies while sleeping

I'm not sure if this is the right place to ask this but Biology seemed to fit best. I'm trying to find out what frequencies the brain responds to best while sleeping. The reason for this is recently I attended a lecture where it was stated that the…
Flatlyn
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How is brain calorie intake affected after hemispherectomy?

So, I hear brain consumes 20% of the body's energy, and also according to studies people with only one hemisphere can function mentally fine with little to no problems. My question is, how does that affect calorie intake of the whole body or the…
Hormoz
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Can a brain be transplanted?

Is it possible to transplant a brain and would it keep the memory? If not, what would be the prerequisite to transplant one?
Marc
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What is the science behind talent?

So some people are better at doing stuff than others of the same age..in other words, they have talent. So I am asking, what is the science behind talent? What is different in their brains than others which give them an advantage? By talent I mean…
MartianCactus
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