Thank you all, for your useful replies. In the meantime I also received below message from Allen Thomson, who once was subscribed to this list. Bests, Frits Westra _______________________________ From: ALLEN THOMSON <thomsona@> I just learned that there is an inverse form of the autokinetic illusion that's called, not surprisingly, the "autostatic illusion," "autostasis" for short. http://us.geocities.com/g_m_kelly/ufo-2.html says, AUTOKINESIS: the apparent motion of an object which is the result of irregular and uncontrollable movements of the eyeball. Viewing stars, Venus, and so forth while experiencing autokinesis gives these lights the appearance of controlled, yet unusual flight. AUTOSTASIS: the apparent cessation of an observed moving object caused by irregular movements of the eyeballs as they try to follow an object like an artificial man-made satellite. The "UFO" appears to make repeated stops in its flight. ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
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