Why do they not think tickled his itch

United Kingdom scientist on June 28, said that the human brain can advance to realize some sensations, such as from your own touch and so on, so it can be "concern" focus to some of the more important outside contact. While this conclusion will also be able to why Tickle themselves do not feel the itch to explain the phenomenon.

Diagram: acceptance tests to pass right hand fingers to press the device button, to touch the left hand finger; and researchers also can press another button (right).

Not be brain to self tapping

According to the United States "life science network," 28 June reported that in the course of the study, 30 participants with the right hand of a finger, by Pat is placed in the left hand one finger on the device to the fingers touching the left hand, and the device can immediately on this kind of slapped role for delivery. In the left hand finger tap before the computer-controlled device can bring different duration of the delay. The researchers will use another button to cause the external production of punched.

According to accept the test personnel, in the interval of time, the left hand feeling less concentrated in any self tapping may spontaneously instant.

The key point is that when the human brain foresaw such a beating, but this kind of slapped again as expected to occur when the brain on the extent to which its attention is weakened.

To this end, the London Institute (University College London, UCL) Neurological Institute of Paul · Beth said: "this finding on the ' brain often is going to happen and will receive the feeling to forecast ' provides support for this theory. ”

Analysis of the principle of scientists

Why our brain would be so? scientists on this in-depth explanation. In fact, one senses the received information is often a bit "outdated", this is because from our fingers and ears or eyes to the transmission of electrical signals to the brain is to take time.

Beth said: "Although this delay only less than a second time, but this time has been long enough to generate any involves precise control over our bodies or moving objects, such as catch a ball, etc. "He also said:" through the senses tell our information and we are going to happen in the forecast, and we can get a picture of the current state of their own body and accurate picture of the external environment. ”