We use the vision to understand what we hear. But sometimes it can lead us astray. For example, if you hear someone say "ba", but you have seen that "ha" was pronounced, your mind will lean closer to what you see.
The brain tries to understand the conflict between what we see and hear. Thus, we can not always believe what we hear, though with certain sounds, especially pairs of consonants, the effect is amplified.
20 volunteers at the age of 19-30 years passed a popular test on creative thinking in two stages: in one case, they received electrical stimulation of the brain, to create an alpha rhythm, and the other when the stimulation was artificial in order to control an experiment.
The volunteers did not know where they got real and fictitious electric shocks. In both cases, when the test began, they felt a mild tingling.The results were impressive! According to the results of tests, participants who received real electrical stimulation, had more than 7.4 points. That's a pretty good result for the test.
To test how well a person feels, where is his or her body, an experiment was carried out. Participants suggested to wear a virtual reality headset and go under the brain scanner.
Using the camera in another part of the room, connected to a headset, the participant could see the stranger's body, lying in the foreground, and the body of the member was scanned in the background. To create an out of body experience, the scientist touched the body of a member who only saw the body of a stranger had touched in the same way.
"Within a few seconds, the brain combines the sensation of touch and visual information, as a result it creates the illusion of staying in someone else's body" - explains the researcher Arvid Guterstam.
"Your body feels perfectly normal - you are not "floating" in space."
It is enough to think of one word or some idea - and the computer immediately opens a program. The cursor on the screen will follow the movement of the human eye. The creators of "brain writing" really wanted to help the graffiti artist Tony Quan from Los Angeles, who due to amyotrophic lateral sclerosis (ALS), lost control of his muscles.
Scientists also found out how to make someone feels invisible. They conducted a test involving 20 people, 75% of whom had experienced an illusion.
Participants were given a headset connected to the camera, showing an empty space. Researcher stroked member with a brush, and the member saw how the brush strokes empty space. Brain gave participant understand that his body is invisible.
In the following part of the experiment, members were asked to look up. During the experiment, it was found out that some participants in the headset looked down. The researchers noted that participants did not violate the conditions of the experiment, if they felt their bodies can be seen.