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COMPLETE Introduction to Neuroscience Notes [Version 2 - Part 2] - got 90% on final

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Department
Neuroscience
Course Code
CAS NE 101
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All

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NE lecture 10/4 Primate and human brain evolution How can primates invest so energy into their large brains? ­tissue reallocation(expensive tissue hypothesis) ­extended development(late equals large) why do primate have such big brains? ­complex and flexibly behavior ­ecological versus social ­social brain hypothesis= large brains facilitate social interactions­ larger groups  select for larger brains Dunbar­ shows relationship between neocortex ratio with the mean group size.  ­ positive correlation ­ historical relationship between group size and brain size. SBH doesn’t apply to social carnivores like lions ­large brains facilitate pairwise social interactions­ individual recognition, social  memory ­pairbonding= lifelong bonding with one other individual ­ pairbonding individuals have bigger brains than non          pairbonding ­primates are the only groups where the presence of pairbonding  doesn’t affect brain size because the ability to make relationships  with one other is generalized in all primates ­theory of mind – primates are good at remembering which group  members did what, when, who they did it with, and who they did it  to Humans have evolved to occupy unique lifestyle that takes advantage o
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