Episode 21 - How Does Your Brain Make Your Fingers Move?

Jenna (I hope I spelled your name correctly...) wants to know how your brain controls your fingers. This is a really neat question, and because I am a psychologist, I did not have to ask anyone but myself. One of the very neat things about this is that the left half of your brain controls the right side of your body. Oh, and even though it feels like you move as soon as you want to, it takes at least 300 msec before anything actually happens in your fingers. The key to the whol thing is a neurotransmitter called acetylcholine.

I hope you enjoy episode 21, keep the questions coming!

Episode 20 - Why does the human brain think so much?

Originally I was going to do a few updates on previous shows for episode 20, then this gem of a question came in about neuroscience and psychology, how could I refuse?  

Nikhil Kumar of Bloomington, IL is a student at Northpoint Elementary School.  Nikhil asked, why does the human brain think so much?  WOW that is a great question.  Well part of the reason when you are very small anyway (before you are born) is that if you don't use brain cells they die.  (It turns out this is a good thing, don't worry) and well there is also a lot of thinking you are doing that you are not aware of.

If you have sent me a question I will get to it soon, I promise!

Enjoy episode 20.