English and Italian source sensory domains in frequency-decreasing ordering (%), adapted from Strik Lievers 2015On the other hand, the frequency of target modes in Korean synesthetic transfers is similar to the finding of Strik .
2013, she found large-scale data results and more clearly presented that the so-called principle of directionality just reflects the "frequency" of synesthetic connection types, adding a few interesting interpretations about the motivation of English and Italian synesthetic mappings.