Reply #39: you might find this analysis interesting [View All]

http://www.doctorzebra.com/prez/g43.htm

"In the second debate Bush was blinking his eyes at a furious rate. Rapid eye blinking has been associated in the medical literature <15> with mental tasks such as memory use and speech, as well as with clinical states such as dry eyes, tardive dyskinesia, Tourette syndrome, schizophrenia, autism, and combined depression and sleep deprivation <10>. (More generally, eye blinking has been described as a useful clinical sign of central dopaminergic activity <15>.) Eye blinking can also increase when a person is lying or when in uncomfortable or unpleasant situations <14>. (For further examples, see Richard Nixon and George H. W. Bush.) Eye blink "storms," which Bush certainly had, have been described as "the mind's way of shutting out unpleasant stimuli" <14>.
Bush made repeated lateral to-and-fro movements of his jaw during the debate. Such movements are also noticeable in video made on the campaign trail (e.g. 29 October 2004). It is unclear whether this is just a habit or whether it results from an underlying physiological condition.
Comment: Given Bush's decision to defer his annual physical examination until after the 2004 election, these observations evoke greater than normal concern."

He also mentions the drooling/spittle thing (evident in the 3rd debate) -- taking your observations into consideration, it may be significant ...