
Is vision really our primary sense? Do the vestibular apparatus of the inner ear, which maintains balance, and proprio-reception in the muscles qualify as fully-fledged additions to the traditional five senses?
What are the implications of the discovery that color is in the eye of the beholder rather than a fixed property of reflected surfaces?
Is the feeling that we experience a visual representation of a whole scene a subjective illusion? What it actually being represented at any given moment and why?
Perception relies on a background of theory informed by our formative experience. Does perception suffice as a general model for the acquisition of all manner of synthetic knowledge? Is the Scientific Method, also characterized by a background of theory, sense perception made explicit?
If we can be fooled by optical illusions is it reasonable be skeptical about all sense data? Do people who think differently also see differently? Why are opinion and belief often used synonymously with perception?
Our perceptions are informed and constrained by our singular experience. By the time we are able to notice this and reflect upon it, we our senses are already preconfigured. We are in medias res. For this reason alone there are no naked perceptions.

The Latin name Homo perspicax refers to sense perception.
The evolution of mind and the senses has been driven by the immediate needs of embodied creatures inseparable from their immediate environments. Perception is of the moment and occurs at lightning speed. The science of the senses provides tantalizing glimpses into the nature of knowing and learning.
Our senses are sometimes fallible and respond only to stimuli falling within a predetermined range, but they are our sole portal to experience.