See lobotomies and brain damage. See eye and nerve damage. See people with syndromes or developmental disorders.

The experiencer is the sum of your body's processes. It's what it feels like to be your body. To be connected to all your parts. To have been raised and taught to react, to have instincts and decision making circuits based on these. It's a material thing. Vision is the sense of eye, thought is the speculative sense of sensing, etc.