From the Latin for "agreeing", it describes 2 figures that coincide when superimposed
... I2 
metric with a 95% CI was calculated to describe the percentage of... [DOC] [TLE] Category-Selective Background Connectivity in Ventral Visual Cortex [PAR] Jun 13, 2011 ... We focus on the background connectivity of 2 regions whose ... scenes 
superimposed (Fs), scenes attended with faces superimposed (Sf), faces ... 18 
subjects using a 6  6 Latin square.