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I have heard of "interaction with" and "interaction between" but not "interactions on". What does it mean in the following context?



Context:
Here, areas of study such as art history that once sought to uncover the universalistic values that defined great works of art are now engaged in disclosing how such value gets assigned to cultural artifacts—a notion now expanded to include film, video, and television—as the outcome of interactions on discursive fields constituted through power

Comments  
cattttI have heard of "interaction with" and "interaction between" but not "interactions on". What does it mean in the following context?

This reads like gobbledegook. I have to guess that there is an understandable thought behind it, but it did not get expressed in writing. "Discursive fields constituted through power" sounds like he's trying to be funny.