The title of the page, Sensory Systems, is self-explanatory as it stands and should not be merged with the psychological elements associated with it.  I would be happy to expand on the neurological aspects of the sensory system of the overall neural system, and show how it is subdivided into the auditory modality, the visual modality, the gustation modality, and the olfactory modality if that would help.  Each of these modalities is treated quite differently in the psychological and behavioral laboratories.  I think I will go ahead and do this in order to get something done.