I have always maintained that the soul is needed to perceive the content of our brain cells to bring this data to a single entity of perception, enabling our conscious awareness.
The fact that you have always maintained that just means you were always wrong about that and continue to be wrong. Souls are spurious as what you describe is standard brain function anyway. You have two eyes and yet you have a single flow of visual experience and the same is true of all creatures. The brain takes sensory input streams that are very different in nature, arriving at very different speeds, and blends them seamlessly into a unified stream of experience. Go into the woods today, do you see squirrels stumbling about as if drunk, which is what we'd expect in a creature suffering from double vision and unsynchronised hearing. They move about with just the same elan, confidence and fluidity as do you or I, if not even more so. Some spiders have eights eyes, do you imagine they suffer from octupal vision, not having a soul to integrate all that information ?
Without this perception, our brain would just function as a machine which reacts without the need or the ability of conscious perception, just as a man made robotic brain would function. Lots of data will be present in the material brain, defined by the state of lots of individual brain cells, but the material model has no mechanism to bring this data into a single point of perception.
Wrong again, and you must know this by now as I've covered this for you multiple times already. We do have a material model for the mechanism, it is known as the reticular activating system, the most important organ of which assembly is the periaqueductal gray, which orchestrates the cross brain synchronicity of multi modal sensory information flows into the single blended unified information flow that we call conscious experience.
Science does not do perception, it only does reaction.
I think you are going for some kind of record here, the most volume of wrongness in the smallest possible space. Of course scientists study perception, and have been doing so for decades already. How do you think we have come to understand about peculiarities such as consciousness lag or subconscious pattern recognition ? It is thanks to research into perception in cognitive science.