alt Hacker NewsYou really don't need a concept of a colour or a shape, and it's a fairly typical academic fallacy to assume you do.
That's directly confusing experience with categorisation and labelling of experience.
If you touch a very hot object your nervous system will pull your hand away before your brain registers what's happening. The qualia of pain are pre-conceptual, preverbal, and precranial, and your consciousness only catches up later.
Surely this implies exactly the opposite - you don't register the pain, don't feel it, until after you pull your hand away. It's a reflex action in response to heat. Qualia require a brain to process sensory input.