Is it possible to re-experience a physical experience ,purely out of memory,for e.g,can you contemplate and in a way literally experience the feeling you get, say,when you take a walk in winters?Surely,the brain must store such things?

Here in Canada, many children grow up in bilingual households. How do their developing brains learn to understand that while 'Hello' and 'Bonjour' mean the same thing, they can only be used within another set of words? Is this a problem? Are there 4 year-olds speaking with a mix of 2 different vocabularies?

It seems that breathing can't be distracting my concentration, and nothing should be able to make me "forget" breathing, since I breathe all right while sleeping.

Nonetheless, when I am doing something difficult and important, for the few most tricky moments I tend to hold my breath (and become aware of that only afterwards). Why so? I should think it's better for performing the task to have enough oxygen in the brain?

 I ask this because of the case of very long axons such as those extending from the feet to the base of the brain.

Are all creatures wired like that? Are any humans wired with the left side connected to the left side of the body in a similar way that some people have hearts on the wrong side?

I understand that there are no pain receptors in the brain, so people undergoing brain surgery can be alert, with anaesthetic administered only locally to the scalp.

If this is so, how do we experience the pain of headaches and migraines, especially those that seem to come from a specific point inside the head and which throb and radiate from that point?

Sophie Yauner, By email, no address supplied

I remember hearing a while back, on a science podcast by Dr. Karl Kruszelnicki, that it is possible that memory is stored throughout the body aswel as in the brain. I'm not sure how correct this theory is, but if it is in fact true could it have any link to 'Phantom limbs'? I was thinking that maybe the body remembers how, an arm for example, moves or feels even when no longer there. This maybe sends signals to the brain (which knows the arm isn't there) but because the memory is stored elsewhere it causes confusion and leads you to interpret the memory as present truth. Could this be at all possible?