The hormone of love causes aggression. Free Technical Library News

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The hormone of love causes aggression

05.07.2020

Oxytocin is called the "love hormone" because it strengthens the emotional bond between people. However, scientists have found that oxytocin can cause aggression. It depends on the conditions in which it is produced.

Israeli researchers conducted experiments with mice. The animals were equipped with a portable device that allows you to activate oxytocin neurons in the brain. To activate, the neurons were modified to synthesize a photosensitive protein. As a result, having received a light pulse, the neurons were activated.

An important feature of the experiment was that the living conditions of the mice were close to natural - the researchers created a "semi-natural" environment for them, making an imitation of the natural landscape. The mice moved freely, and a video camera monitored their lives around the clock.

At the beginning of the experiment, oxytocin surges stimulated the mice to become actively interested in each other. However, interest soon began to give way to irritation and aggression. In semi-natural conditions, mice began to compete with each other for territory and food, and oxytocin began to exacerbate their behavior. For comparison, some mice were kept in a normal laboratory setting, and in these laboratory conditions, where no one has to compete with anyone, oxytocin did not provoke aggressiveness.

From this experiment, we can conclude that oxytocin is more competently called the "hormone of sociality", and by sociality here one must understand the entire spectrum of relationships between individuals, from friendship to enmity.

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