Any models that act using both streams of visual processing? The Two-Stream Hypothesis, where object properties are processed independently from spatial information, remains the most well established theory of visual processing. However, it concerns me that most models that reference this theory stop at the end of the two streams (as per the cartoon model in the image below); they never say how the mind translates those sources of information into action (i.e. the two arrows in the picture never meet). 


Are there models and/or theories out there that try and situate the Two Streams of information into a full perception action cycle? 
And if not, then why not (e.g. complexity, better theories, different level of analysis, etc.)?
Mario Liotti and Don M. Tucker (Brain Asymmetry, MIT, 1996) attempt to explain that the 'corticolimbic architecture is not left/right, but dorsal/ventral". In their opinion, the reason for hemispheric asymmetries can be found in the asymmetries of the dorsal and ventral systems. They proposed that emotional behavior could be interpreted by analyzing the vertical circuits (dorsal/ventral).