I don't think you can learn/conceive of empty sets and non-empty sets (or that you think therefore you are) without sensation. While examples are thin on the ground*, the most reasonable self-awareness models rely on an ability to identify the self in one's environment and one's ability to move within it. Without sensation, brains, minds, whatever have nothing to define themselves into being.

*I did look into this years ago and found some rare cases of infants born without the ability to sense and obviously they did not develop properly and were effectively vegetables. Suggestive material exists for people with specific senses absent from birth missing certain experiences of self when dreaming and the like, although plasticity, rewiring the brain to use the visual systems with blindness have also been observed. The general point - that sensation precedes language, logic and self, and these things are genetically dependent on sensation in the hierarchy of knowledge - I think is defensible and reasonable to accept.