Posthuman Blues

Blind, Yet Seeing: The Brain's Subconscious Visual Sense

Scientists have previously reported cases of blindsight in people with partial damage to their visual lobes. The new report is the first to show it in a person whose visual lobes -- one in each hemisphere, under the skull at the back of the head -- were completely destroyed. The finding suggests that people with similar injuries may be able to recover some crude visual sense with practice.

I rather suspect Peter Watts will weigh in on this shortly.