The dorsal pathway is commonly referred to as the ‘where’ system; this allows the processing of location, distance, position, and motion.
The second pathway, the ventral stream, processes information relating to shape, size, objects, orientation, and text.
Neuroanatomical and function neuroimaging studies have proven multiple visual maps that exist in the posterior brain, regarding at least 40 distinct regions.
For example, three distinct processing routes could exist dorsally, one for grasping, another for reaching, and yet a third for awareness of personal actions.
Studies prove visual illusions that involve perception more so have considerable results on action.
This can clearly rule out the first hypothesis noted above, indicating the thought that visually directed actions always avoid the matter of perception.