动物实验 z-bo 2020-09-04 345

　　Neurobiological research is the first to show that jealousy can maintain or divide the relationship between husband and wife.

　　A few days ago, a study published in the journal Frontiers in Ecology and Evolution found that jealousy leads to increased brain activity in monogamous monkeys, which is related to social pain and partner pairing. Jealousy is a strong emotion. This is the first primate model to study jealousy in the field of neurobiology, because it is difficult to study in humans, and there is no typical study in animals.

　　"Understanding neurobiology and the evolution of emotions helps us understand emotions and their importance," said Dr. Karen Bales of the University of California. |"Jealousy plays a particularly interesting role in romantic relationships and domestic violence."

　　When you think that someone is threatening an important relationship, jealousy often appears. For example, my spouse may become a new friend of a new lover or a good friend in life. This "green-eyed monster" brings strong emotions such as fear, anxiety and anger. Unrestricted jealousy can adversely affect health and, in extreme cases, can also lead to violence.

　　However, jealousy also plays a positive role in social relationships, indicating that relationships can be tricky. For monogamous species such as humans, it is particularly important to maintain the relationship between husband and wife. However, little is known about the biology of jealousy and its role in long-term pairing. Bellers said: "The neurobiological research of the anti-competitive alliance is very important for understanding the evolution of monogamy and how it became a social system." .. "A better understanding of its neurobiology is also for how to solve addictions such as addiction. , Health and well-being issues such as spousal violence and autism provide important clues." Monogamous rodents. However, this does not necessarily apply to humans and other primates.

　　Balles and his team turned to a monogamous primate, a bronze monkey. A united individual establishes an attachment relationship with his spouse, acts in a way that protects his partner, and gets lost when they are far apart, just like in love. Bowers said: "In the case of mice, male monkeys are very similar to humans, and even prevent their partners from interacting with unfamiliar males on their limbs." The researchers ended "jealousy" by allowing male monkeys to witness strange male contact with their partners. As a control of "jealousy", the monkey witnessed a strange female coming into contact with a strange male the next day. After 30 minutes of observation, they recorded the behavior of the male monkeys and then used brain scans to observe the areas that were triggered under different conditions. The researchers also measured the levels of various hormones that are thought to be involved in mating knot formation, mating-related aggression and social tasks. In the case of jealousy, it was found that the monkey brain area tortured by human society has the cingulate cortex, showing high-intensity activity. They found that the movement of the outer wall also increased. Bayless said: "Previous studies have confirmed that the side wall is related to the mating and bonding of primates." She said: "Our research predicts that the side wall of the brain also plays a role in the mating site of monkeys."

　　"Increase the activity of the cingulate cortex is consistent with the social rejection of jealousy." Added. Jealous men also experience hormonal changes, and testosterone and cortisol levels increase accordingly. The more worried they are in contact with strangers, the higher the level of cortisol, which is an indicator of social stress. Elevated testosterone is thought to be related to aggression and mating competition. A monkey study synthesized a rodent-based model in which pairing and bonding form areas that are responsible for social memory and reward, and the basis for maintaining contact is negative reinforcement, that is, avoiding the pain of separation. Although the distribution of these areas in the rodent and primate brains is slightly different, it seems that the same hormones are also involved in the basis of neurochemistry. "Polygamy may continue to develop, so its neurobiology is not uncommon among different species," Bails said. "But the neurochemistry that combines pairing and jealousy seems to have merged and evolved."

　　The question is, is the jealousy of female and male monkeys the same? Bayless said: "One limitation of our research is that we can only observe men." "Female monkeys and humans are also jealous, and their neurobiology may be the same or different. The neurobiological gender difference in social behavior may be that boys are better than girls. The reason for autism. Maybe it can finally explain why this kind of love relationship is very high, why men and women have romantic relationships. Please take other actions.