How do you laugh? Does it come from a certain part of the brain??

Question: How do you laugh? Does it come from a certain part of the brain??

Asked by kizzag to Fiona, Joanna, William on 24 Jun 2010 in Categories: General.
- Fiona Randall answered on 24 Jun 2010:
  
  Laughter is a vocal expression of happiness. It is thought to be spontaneous and maybe a result of activity in the prefrontal cortex and the limbic system of your brain where your emotions are controlled.
  I sometimes giggle when I am nervous too!
- Joanna Brooks answered on 24 Jun 2010:
  
  Hello! Well people laugh because there is a part of the brain called the ‘limbic system’ which responds to emotions like when we feel happy or sad. Laughing is very good for you and actually increases blood flow around the body which is one of the reasons that laughter may have evolved.
- William Davies answered on 24 Jun 2010:
  
  laughter is present in many species including apes, and even rats (who let out extremely high-pitched squeaks when tickled!), so it is probably a pretty basic brain mechanism. recent studies have shown that the frontal lobe of the brain (above your eyes) and the emotion systems (such as the amygdala and hippocampus) are involved in laughter, but no-one knows exactly how yet

Question: How do you laugh? Does it come from a certain part of the brain??