How does that get wired up in a brain?
In the 24 Big Questions Science Still Needs To Answer by Kelly Oakes in BuzzFeed
http://www.buzzfeed.com/kellyoakes/big-questions-science-still-needs-to-answer
Stephen Pinker (cognitive scientist.) addressed this interesting question and added: In an experiment, five-month-old infants spent on average 7 seconds longer looking at pictures of spiders than ones of other objects, suggesting a predisposition to viewing them in a different way. But how this predisposition comes about is not yet known.
(http://neuroscientificallychallenged.blogspot.co.uk/2008/01/spiders-snakes-and-evolved-fears.html )
What is your opinion?
Wikipedia has quite a lot to offer on this topic. Briefly, the configurations of our neurological systems for reward and aversion mediate a great deal of genetic influences on personality. Gene–environment interactions are important to consider as well. The degree of complexity expressed in these interactions is quite profound.
https://en.wikipedia.org/wiki/Biological_basis_of_personality
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