Scientists from California Institute of Technology (USA) have found out that social isolation is reflected in brain neurochemistry, in particular increases the level of a neyrokinin of B — peptide which, in addition, is responsible for aggressive reaction to a stress. The research was conducted on laboratory mice, but, according to experts, similar substances are also in a human brain so results will help to understand a lot of things about frustration of human mentality.
Scientists have made a series of experiments on laboratory mice. After long stay in loneliness animals showed aggression in relation to unfamiliar mice, felt fear and became extremely sensitive to threats. It is interesting that the effect was observed only at mice who have spent alone two weeks. The rodents who have carried out without "company" one days behaved normally.
Researchers have artificially blocked activity of a neyrokinin of B which is responsible for disturbing states, in a brain of experimental. With blocked neyrokininy B mice behaved normally even after long loneliness. Mice in whose brain, on the contrary, have artificially increased the level of a neyrokinin of B showed aggression and fear.
According to scientists, in a human brain there are also similar substances and if blocking some of them renders similar effect, then the technique can be used in therapy of disturbing frustration and a depression at people.