Serotonin is another hormone which plays an important role in origin of attraction. To explain the role of serotonin I would like to use the study done by Marazziti . She studied 60 individuals , out of which 20 were men and women who had fallen in love in the time span of 6 months . 20 were men and women who treated from untreated obsessive compulsive disorder and last 20 were normal healthy individuals, who were not in love. Then the blood samples of 60 people were taken. The conclusion was that the level of serotin of people who were recently fallen in love where equal to the serotin level of people who were going through obsessive compulsive disorder. So the study concluded the relationship between lo level of serotonin and romantic love.
Oxytocin is another type of hormone which helps in creating more attraction between two individuals. It is a hormone which is released during physical contact between two individuals. For examples when I hug my friend , oxytocin is released in my body and I become more found of my friend.
Another hormone which is important for long time attraction is vasopressin . It is released during sexual activities. This hormone makes the individual more committed to the partner.
Evolution also plays a huge role in attraction. With the help of David Buss’s experiment I can state that evolution has an effect on the role of attraction. Women during their menstrual cycle tend to behave differently with their partners this happens because during menstruation their menstruation they cannot mate and their oestrogen levels are low. So they are very jealous if their mates talk to a female, because at that point of time they cannot mate , so they feel insecure that their partner might drift away from them. This behavior is only during their menstrual stage. They try to stay attracted to their partner in other ways, other than physically.
Brain activities also play an important role in attraction. Fischer conducted an experiment to show how the brain plays an important role in it. He used fMRI to check the blood flow of 20 men and women, who were madly in love. He used fMRI while they were asked to look at the photograph of their lover and a neutral acquaintance. Then the participants were required to fill in a questionnaire , which was based on their feeling about their partner. This was done to compare their brain activities to what they reported in the questionnaire. The participants first looked at photographs if their partners for 30 seconds during which they were also being scanned . Then they had to view a photograph of a neutral acquaintance. This was repeated six times, after which they concluded that when they viewed the photograph of their love , a pleasant stimulus was released which played a role in attraction.
The role of hormones, the brain activity and evolution all play an important role in the origin of attraction. By the experiment , we saw that how each of them play a crusial role in it. And we can conclude that biological activities influence the role of attraction between individuals.