Below is an excerpt from a post that recently appeared at the Thoughts on Tai Chi blog. It examines Tingjin, or "listening" in Taijiquan. The full post may be read here.
Why is tingjin, “listening”, or sensitivity skill so much emphasized in Tai Chi Chuan? Why does Tai Chi rely on sensitivity instead on the eyes? The experience of Tai Chi practitioners says that relying on sensitivity to decide your actions is faster. Well, sensitivity is faster.
Simply explained, there’s a delay in your brain for everything you do
to become aware of it by 0.5 seconds. Yes, everything. To become aware
of something takes 0.5 seconds. This has been scientifically proved.
However, it has also been equally scientifically proves, that if you
would touch a hot stove with your hand, it would react on the heat and
pull it away by a merely 0.1 second delay. So your sensitivity is
definitely faster than your thought.
So for sure, the reaction in itself is fast, but does sensitivity really let you decide
what you do faster? Don’t you need to decide what to do? Shouldn’t the
process of following, guiding and handle the opponent involve the same
process as if you watch something with your eyes?
Did that sound awkward? But it’s true. Science have proved that the decision-making does not start on your consciousness, but first after when you have started doing something, your consciousness catches up with and realizes it and believe that it made a decision. By measuring the activity in different parts of the brain, researchers have found that you become aware of what is happening later than the action itself. Because of the delay, the mind even backtracks 0.5 seconds to catch up with the action.