possibly never. Localising neurons for perception of lines is one thing, but there is still no consensus on which neurons, or networks of neurons are involved in more perceiving more complex scenes, certain memories, audiovisual memories, audiovisual perception... etc.
It makes a nice bullshit story for the telegraph to fill a page with though, especially the bit about the retina recognising images. The retina doesn't do anything like recognition.
/endgeekrant
(, Fri 12 Dec 2008, 0:55, Reply)