Perception is about sensory input streams - sight , sound, touch etc. Do you understand something different ?
The sensory input streams send signals to certain parts of the brain, but these parts a still just individual bits of material. Perception is about perceiving the collective states of these individual bits of material, rather than just reacting to them. I believe that animals react whereas humans perceive and then consciously decide how to react.
Perception is not about reaction, that comes later. Perception is about our awareness of what is around us. Subconscious perception is faster, subliminal, more faithful to reality. Conscious perception takes time to produce, is more sophisticated, richer and fictitious, to some extent. As an example of subconscious perception, the British Army in Afghan had intelligence operatives seaching satellite images for Taliban caves, but rather than asking them to look at photos and say when they found a cave, they wired them up with headsets to a computer and the software would detect when they had seen a cave without (consciously) realising it. Subconscious perception is truer, simpler, faster and more faithful to reality, it is not subject to the agendas nor indeed the time lag that characterise conscious perception. You cannot in all seriousness claim that other animals do not have conscious perception, this would be to claim in effect, that all other animals are permanently asleep. For sure the particular qualitites of conscious perception will vary from species to species and from individual; some see colour, some don't; a bat sees but without eyes; a scorpion hears through its legs, we can only try to imagine what conscious awareness is like for other creatures, but it is silly to claim that they don't have it, the production of conscious awareness is a base cognitive function of the mammalian brain and will be basically similar in all creatures that share a mammalian brain, which includes humans of course.
I really don't see how your idea of a soul fits into this scenario; it suggests a form of double experiencing going on. Does it sit there somehow watching my conscious perception and experiencing that in some sort of secondary way ?