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Home NEWS Science News Health

Females find social interactions to be more rewarding than males, study reveals

Bioengineer by Bioengineer
January 30, 2019
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Credit: Georgia State University


ATLANTA-Females find same-sex social interactions to be more rewarding than males, and females are more sensitive to the rewarding actions of oxytocin (OT) than males, according to a research study led by Georgia State University on the brain mechanisms that determine the rewarding properties of social interactions.

“Recognizing gender differencess in social reward processing is essential for understanding sex differences in the occurrence of many mental health diseases and the development of gender-specific treatments for psychiatric and neurodevelopmental disorders such as autism, substance abuse and schizophrenia,” said Dr. Elliott Albers, director of the Center for Behavioral Neuroscience and Regents’ Professor of Neuroscience at Georgia State, who led the research team.

The research team discovered that while OT acting within the “reward circuit” in the brain is essential for the rewarding properties of social interaction in both males and females, females are more sensitive to the actions of OT than males. The team also found that as the intensity of social interactions increases among females, these interactions become more rewarding up to a point and then are ultimately reduced (for example, there is an inverted U-shape relationship among OT, social reward and neural activity).

The findings are published in the journal Neuropsychopharmacology.

OT receptors in the brain play a major role in regulating many forms of social behavior as well as pair bonding. Social neuroscience literature indicates social support reduces drug use, ameliorates stress and can predict better mental health outcomes in the treatment of various psychiatric disorders. Prominent sex differences exist in the prevalence and clinical course of many of these disorders. For example, women typically have higher rates of depression and anxiety disorders, while men more often suffer from autism and attention deficit disorder. Despite substantial sex differences in the expression of social behavior and the incidence of these mental health disorders, little is known about how the brain mechanisms underlying these phenomena differ in females and males.

Recognizing this gap in the knowledge base, the team investigated the sex-dependent role of OT receptors within the ventral tegmental area of the brain of male and female rodents. More specifically, they explored whether OT receptors mediated the magnitude and valence of social reward and if this mediation differed by gender. They used several preference tests to measure the rewarding properties of social interactions.

Study data showed that activation of OT receptors was critical for social interaction to be rewarding in both males and females, but females were more sensitive to the actions of OT than males. This is the first study to provide evidence that same-sex social interactions and OT are more rewarding in females than in males in an animal model. These findings are consistent with human studies.

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The research team involved in this study included scientists and graduate students at Georgia State’s Center for Behavioral Neuroscience and Neuroscience Institute: Albers, Kyle Frantz, Johnathan Borland, Lauren Alani, Alisa Norvelle, Kymberly Grantham, Kylie O’Laughlin and Joseph Terranova.

To read the study, visit https://www.nature.com/articles/s41386-018-0262-y.

For more information on Albers and the research being conducted in his laboratory, visit http://neuroscience.gsu.edu/profile/h-elliott-albers/.

For more information on the Center for Behavioral Neuroscience, visit http://www.cbn-atl.org.

Media Contact
LaTina Emerson
[email protected]
404-413-1353

Original Source

https://news.gsu.edu/2019/01/30/females-find-social-interactions-to-be-more-rewarding-than-males-study-reveals/?utm_source=press-release&utm_medium=media&utm_campaign=females

Related Journal Article

http://dx.doi.org/10.1038/s41386-018-0262-y

Tags: BehaviorMedicine/HealthMental HealthneurobiologyNeurochemistrySex-Linked Conditions
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