Most of the proposed causes are ill-informed zebra hunting. Instead, consider this simple recollection Bush had about the final weeks of 2002, when the decision to invade Iraq was looming ever larger:
There was a lot of stress. Yeah, I felt stressed. My jaw muscles got so tight. And it was not because I was smiling and shaking so many hands. There was a lot of tension during that last holiday season. 1aComment: It thus appears that Bush develops a certain jaw mannerism when stressed. Furthermore, like all humans, his body language changes when stressed 2 1b.
Rapid eye blinking has been associated in the medical literature 3 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 4. (More generally, eye blinking has been described as a useful clinical sign of central dopaminergic activity 3.)
Eye blinking can also increase when a person is lying or when in uncomfortable or unpleasant situations 5. (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" 5.
a p.251 b p.270
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Comment: Accessed from www.washingtonpost.com: http://www.washingtonpost.com/wp-dyn/content/article/2005/10/11/AR2005101101577_pf.html |
Comment: Karson discusses autism in Bull Soc Belge Ophtalmol. 1989; 237: 443-457. Pubmed 2486118. |