When studying the human mind, we need to study the human brain. is the contributing academic field that enables psychologists to do just that.

I can safely say that you can ignore the brain when studying the mind :)

Explanation:

studying a mind is like building a computer you morale worried about the interior and the information it is holding verses the exterior and the appearance.

the correct answer is moro reflex. this is usually witnessed in infants normally up to the age of 4-5 months (in some cases maybe more)  

it is caused by a sudden loss of support that makes the baby feel as if he or she is falling or is going to fall and hence the flinging of the arms and crying.