The FVF might be influenced by object-based attention.

Hulleman & Olivers (H&O) argue that the primary unit in search should be fixations, and in doing so posit a Functional View Field (FVF). There is evidence from the object-based visual attention literature that the FVF may not process visual information uniformly. Here I sketch how object-based attention may influence processing within the FVF as well as the shape of the FVF.