Scientists studying perception at the Wisconsin Medical School have come up
with a new technology that allows blind people to "see" well enough to catch a
ball, walk around obstacles, play rock-paper-scissors, and watch a video. The
device, called a Brain Port, bypasses the eyes entirely and provides a clear
representation of the outside world using gentle electric stimulation of the skin.
How does it work? A small video camera is strapped onto the forehead of the
patient to record how the scene changes as he moves. The video output is wired
to an image converter that translates the picture into a pattern of electrical
charges on a flat patch of plastic which can be placed on the tongue, stomach or
abdomen. At first it feels strange, but within 20 minutes, patients have learned
to completely substitute the flesh stimulation for eyesight. This effect
resembles vision so closely that the visual cortex of the brain is harnessed to
process these tactile sensations.
One of the side benefits of this technology is that it helps us better
understand a prophecy for the Days of Moshiach which we recite every Shabbat
when we remove the Torah scroll from the Ark. The quote, from Isaiah 40:5 is,
"And together all flesh shall see that the mouth of G-d has spoken."
The Lubavitcher Rebbe points out that this verse refers not to eyes of flesh
but rather to the flesh itself seeing the word of G-d that creates and sustains
each thing from nothing to something constantly. Of course, we cannot yet see
the Divine life force in creation, but we do now have proof that flesh itself
has the ability to see. We've already got the receiver to pick up the signal
once the revelation occurs.1
 |
| The "Brain Port" |
Another interesting lesson from this technology is how it has changed our
understanding of how the senses work. People used to think that vision was about
the eye and brain processing a sequence of pictures. Now, however, citing
research such as this, scientists believe that perceiving is not so much about
sights and sounds but actually about processing symbolic information, much like
reading words in a book.
Here too, Torah has known for ages what the scientists are just now starting
to discover--that symbolic information, "words," define reality. In Hebrew, the
word for "thing" and the word for "word" are the same--davar. In effect,
the thing and the word are one and the same! But Torah goes one step farther.
While science can show that information defines reality, it is Torah that
demonstrates and celebrates where that information comes from: the Divine speech
that creates and sustains the world.
LOGIN
ASK THE RABBI
