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I'm auditing a class on Evolution of the Human Brain. Most of the people in the class have a much deeper knowledge of biology than I do so there are some questions I feel aren't appropriate to ask (or I'm egotistical and just don't want to look dumb). A while ago some people here helped me out with a question I had about neurotransmitters. Here is another one. Every once in a while when the professor is talking about non-human animals, and also (I think) about non mammals he says they have "nucleated brains". In a recent lecture talking about the history of early neurobiology and the work of Marie Jean-Pierre Flourens on birds he said (reconstructed from notes but I think this is accurate):
"the more telencephalon was damaged the more the animal was impaired... he said that the size of the ablation correlated with the extent of the problem but the localization within the telencephalon didn't effect specific functions... it [the bird brain] is not organized in maps the way the mammal brain is, remember that the bird brain is NUCLEATED, damage to the bird brain is not going to be as localized as in mammals"
I get the point that mammal brains are more likely to show damage to specific functions due to where a lesion occurs (e.g. vision in one area hearing in another) but I don't understand what the professor means when he says that bird brains (and I think he says this of all brains that don't have cerebral cortex, i.e., most non mammals) is nucleated. I looked up nucleated and found the definition for individual cells but I don't think that is what he means here. -- MadScientistX11 ( talk) 17:45, 20 October 2017 (UTC)
I am looking for reliable sources for this number. I have located this, however, it does not cite any source.
An ideal account would be based on death toll in the industrialized countries only from preventable disease, because that's where vaccines availability is high so any death due to preventable-by-vaccine disease is sure to be through lack thereof. אילן שמעוני ( talk) 18:53, 20 October 2017 (UTC)
Science desk | ||
---|---|---|
< October 19 | << Sep | October | Nov >> | October 21 > |
Welcome to the Wikipedia Science Reference Desk Archives |
---|
The page you are currently viewing is an archive page. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages. |
I'm auditing a class on Evolution of the Human Brain. Most of the people in the class have a much deeper knowledge of biology than I do so there are some questions I feel aren't appropriate to ask (or I'm egotistical and just don't want to look dumb). A while ago some people here helped me out with a question I had about neurotransmitters. Here is another one. Every once in a while when the professor is talking about non-human animals, and also (I think) about non mammals he says they have "nucleated brains". In a recent lecture talking about the history of early neurobiology and the work of Marie Jean-Pierre Flourens on birds he said (reconstructed from notes but I think this is accurate):
"the more telencephalon was damaged the more the animal was impaired... he said that the size of the ablation correlated with the extent of the problem but the localization within the telencephalon didn't effect specific functions... it [the bird brain] is not organized in maps the way the mammal brain is, remember that the bird brain is NUCLEATED, damage to the bird brain is not going to be as localized as in mammals"
I get the point that mammal brains are more likely to show damage to specific functions due to where a lesion occurs (e.g. vision in one area hearing in another) but I don't understand what the professor means when he says that bird brains (and I think he says this of all brains that don't have cerebral cortex, i.e., most non mammals) is nucleated. I looked up nucleated and found the definition for individual cells but I don't think that is what he means here. -- MadScientistX11 ( talk) 17:45, 20 October 2017 (UTC)
I am looking for reliable sources for this number. I have located this, however, it does not cite any source.
An ideal account would be based on death toll in the industrialized countries only from preventable disease, because that's where vaccines availability is high so any death due to preventable-by-vaccine disease is sure to be through lack thereof. אילן שמעוני ( talk) 18:53, 20 October 2017 (UTC)