17 SS VIEWED FOR 100 MSEC. A STRING OF 8 LETTERS ARRANGED IN 3 CLOSED CURVES: A CIRCLE, A VERTICAL ELLIPSE, AND A HORIZONTAL ELLIPSE. THE ELLIPSES WERE TWICE AS LONG ON THEIR MAJOR THAN THEIR MINOR AXIS, AND THE CIRCUMFERENCE OF ALL CURVES WAS THE SAME. LETTERS WERE EQUALLY SPACED WITH RESPECT TO DISTANCE ON THE CURVES. THERE WAS NO SIGNIFICANT EFFECT ATTRIBUTABLE TO THE DIFFERENCE BETWEEN THE CURVES. BOTH THE ORDER AND THE ACCURACY OF REPORT WERE CONTROLLED BY THE RELATIVE POSITION OF LETTERS, AS HAD BEEN FOUND PREVIOUSLY TO BE THE CASE FOR STRINGS OF LETTERS ARRANGED IN A STRAIGHT LINE. (PsycINFO Database Record (c) 2006 APA, all rights reserved)