(Wow it's been a while since I've made a blog entry. @_@; I have to get back into it. :})
If we imagine this as a very simplified process of coming up with things to say:
[think it]->[decide whether to say it]->[say it]
The mechanisms each by themselves are fascinating. Thinking of something to say is an interesting area, encompassing cognitive linguistics, neuroscience, psychology, and all the other fun brain-related topics. The final part involves all the signals...