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How We Judge Couples' Intimacy Influenced by Serotonin
Healthy adult volunteers recruited by experts at the University of Oxford were made to watch photos of couples, and rate how 'intimate' or 'romantic' they perceived them to be.
The volunteers, whose levels of serotonin activity had been lowered, rated couples in photos as being less intimate and less romantic than volunteers with normal serotonin activity.
The approach involved giving amino acid drinks to two groups of volunteers in order to manipulate blood concentrations of the amino acid tryptophan, which is a vital ingredient in the synthesis of serotonin.
One group received drinks that contained tryptophan. The other group received drinks that did not contain tryptophan. They were then asked to make judgments about sets of photographs of couples. Differences in the judgments made by the two groups reflected changes in their serotonin activity.
"Serotonin is important in social behavior, and also plays a significant role in psychological disorders such as depression," said Prof Robert Rogers of Oxford University, who led the research.
"We wanted to see whether serotonin activity influences the judgments we make about peoples' close personal relationships."
The volunteers who received the drink without tryptophan consistently rated the couples in the photos as being less 'intimate' and 'romantic' than the participants who received the control drink.
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12/17/2011
I read about a study of serotonin that was made on mices. The levels of serotonin was manipulated with the help of diets rich in tryptophan aminoacid and in diets without. The result of the study showed something amaising. The mouse that didnt had a diet rich in tryptophan [that of course means low leves of serotonin] was turned in a bisexual mouse.
This study made waves in the science comunity regarding gay people.
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Johnny
12/17/2011
Also id like to add that 25% of homosexual men suffer depression.
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