To heart sounds did not distract us from what is happening around the special parts of the brain closes the heart rate of the attention.
Your own heartbeat we hear rarely, only when very excited or out of breath from the physical exertion. And then to say, if we heard a heart beat, then at best it would distract us from what is happening around them, and at worst we’d just be crazy.
To heart rate did not prevent us, in the brain vs it has the special “jammers.” (Photo max_2001ar / www.flickr.com/photos/55865105@N04/15024342631.)
The whole point here is that the brain has a special mechanism that allows not to hear, not to perceive the sounds of heartbeats; how exactly this mechanism works and tell in his article in the Journal of Neuroscience , researchers from the Federal Polytechnic school of Lausanne.
In the experiment, the form of Olaf (Olaf Blankeand his colleagues was attended by 150 people – was showed on the screen of a certain geometric shape, which periodically appeared and disappeared. It turned out that if the figure flickered in the rhythm of the heart who was looking at her, it was harder to see it as it dropped out of attention.
A special part of the brain called the insular cortex followed the same or no rhythm image with a heart beat: when this happened, the activity of the insular cortex is strongly falling.
In the insular cortex receives signals from the internal organs; and, probably, one of its functions is to filter these signals, allowing or not allowing them to consciousness. In the case of a hearing, obviously, everything is the same as a vision: if there is some kind of signal in the rhythm of my own heartbeat, we simply do not hear. When we are afraid, when we are highly emotional, attention intensifies, we begin to perceive everything we see, hear, feel, etc., including your own heart.
On the other hand, in the laboratory of Olaf Letterhead a few years ago was able to find that rhythm we need for feeling the body. In that experiment using a special device before man was created the image of his virtual double, which you could see from behind which stood two meters ahead.
The body double was enveloped in a glowing shell-halo, which is either pulsed in time with the heartbeat of the “original”, or at their own pace. When the shell was pulsing to the beat of the heart, it looked as if the person saw your heart rate, but – importantly – the participants of the experiment did not know that you see the rhythm of your own heart.
After six minutes of contemplation a private double with a pulsating corona of light had to close my eyes and slowly step back even half a meter back. Then he had to return to the place where he just stood. And here, if halo was pulsing to the rhythm of the heart, people tried to get to the place where his double. That is, the body with a luminous contour he perceived as his own.
If the rhythm of pulsation did not match the rhythm of the heart, the man stayed where he stood, but not a double. The feeling of leaving the body then was confirmed during the questioning of the participants – those who have seen the pulsation corresponding to the cardiac rhythm, feel the virtual body as their own.
In this case, the effect of leaving the body was created by transferring the internal signal to the outside – in other words, the brain for the body to feel rhythm.
Author: Cyril Stasevich
Source: nkj.EN
