APA Citation
Dölen, G., Darvishzadeh, A., Huang, K., & Malenka, R. (2013). Social reward requires coordinated activity of nucleus accumbens oxytocin and serotonin. *Nature*, 501(7466), 179-184.
Summary
This groundbreaking neuroscience study reveals how our brains process social rewards through the coordinated activity of oxytocin and serotonin in the nucleus accumbens, a key brain region for motivation and pleasure. The research demonstrates that healthy social bonding requires both neurotransmitter systems working together. When this coordination is disrupted, it can lead to difficulties in forming authentic social connections and increased vulnerability to exploitative relationships, making this research particularly relevant for understanding how narcissistic abuse affects survivors' ability to trust and connect with others.
Why This Matters for Survivors
This research helps explain why survivors of narcissistic abuse often struggle with trust and healthy relationships after trauma. Understanding that your social reward system has been neurologically impacted validates your healing journey and shows that recovery involves actual brain changes. This knowledge can reduce self-blame and provide hope that with proper support and time, your capacity for healthy social bonding can be restored.
What This Research Establishes
Social bonding requires coordinated brain chemistry - Healthy social connections depend on oxytocin and serotonin working together in the nucleus accumbens, the brain’s reward center, to create positive feelings from social interactions.
Disrupted coordination impairs social reward processing - When this neurotransmitter coordination is disrupted, individuals struggle to experience pleasure and motivation from healthy social connections, making them vulnerable to exploitative relationships.
The social reward system can be neurologically hijacked - Understanding this mechanism explains how narcissistic abusers can exploit the brain’s natural bonding systems through intermittent reinforcement and emotional manipulation.
Recovery involves actual brain changes - Healing from social trauma requires restoring the natural coordination between these neurotransmitter systems through therapeutic intervention and healthy relationship experiences.
Why This Matters for Survivors
Your struggles with trust and social connection after narcissistic abuse aren’t character flaws or weaknesses—they reflect real neurological changes in your brain’s reward system. This research validates that your difficulty feeling safe in relationships has a biological basis that developed as a protective response to trauma.
Understanding that both oxytocin and serotonin systems have been impacted helps explain why recovery involves more than just “getting over it.” Your brain literally needs to relearn how to process social rewards in healthy ways, which takes time and often professional support.
The knowledge that your social reward system can be restored through neuroplasticity offers genuine hope. With consistent therapeutic work and gradual exposure to healthy relationships, your brain can rebuild its capacity for authentic connection and trust.
This research also explains why you might have felt addicted to your abuser despite the harm they caused. The disrupted coordination of these neurotransmitter systems can create powerful trauma bonds that feel impossible to break, but understanding the mechanism helps reduce self-blame and shame.
Clinical Implications
Therapists working with narcissistic abuse survivors should recognize that social connection difficulties stem from neurobiological disruption, not personality defects. Treatment approaches should focus on gradually restoring healthy social reward processing through safe therapeutic relationships and carefully paced social re-engagement.
Understanding the oxytocin-serotonin coordination disruption can inform medication decisions. SSRIs may help restore serotonin function, while therapeutic approaches that naturally boost oxytocin through safe human connection can support overall social reward system recovery.
Trauma-informed care should include psychoeducation about how abuse affects the social reward system. Helping clients understand the neurobiology of their symptoms reduces shame and provides a scientific framework for understanding their recovery process.
Group therapy and carefully facilitated peer support can be particularly valuable for restoring social reward system function. These settings provide opportunities for the brain to practice processing positive social rewards in a safe, structured environment that supports neuroplastic healing.
How This Research Is Used in the Book
This neuroscientific research provides the foundation for understanding how narcissistic abuse creates lasting changes in survivors’ capacity for social connection and trust. Chapter 7 explores how abusers exploit natural bonding mechanisms, while later chapters detail evidence-based approaches for healing.
“When Emma learned that her difficulty trusting others after leaving her narcissistic partner had a neurobiological basis, she felt a profound sense of relief. ‘It wasn’t just in my head,’ she realized. ‘My brain was literally rewired by the abuse, but that also means it can be rewired again through healing.’ Understanding that her social reward system required oxytocin and serotonin to work together—and that this coordination had been disrupted by trauma—gave her a scientific framework for her recovery journey.”
Historical Context
This 2013 Nature publication represented a significant breakthrough in understanding the molecular mechanisms underlying social behavior. The research built upon decades of oxytocin studies while revealing serotonin’s crucial complementary role in social reward processing. This work laid important groundwork for subsequent research into how social trauma affects neurochemistry and opened new avenues for evidence-based treatments targeting the social reward system in trauma recovery.
Further Reading
• Insel, T. R. (2010). The challenge of translation in social neuroscience: A review of oxytocin, vasopressin, and affiliative behavior. Neuron, 65(6), 768-779.
• Heifets, B. D., & Malenka, R. C. (2016). MDMA as a probe and treatment for social behaviors. Cell, 166(2), 269-272.
• Bartz, J. A., Zaki, J., Bolger, N., & Ochsner, K. N. (2011). Social effects of oxytocin in humans: Context and person matter. Trends in Cognitive Sciences, 15(7), 301-309.
About the Author
Dr. Gül Dölen is a neuroscientist and psychiatrist at Johns Hopkins University School of Medicine, specializing in the neural mechanisms of social behavior and addiction. Her research focuses on how brain circuits involved in social reward can be disrupted, leading to difficulties in forming healthy relationships.
Dr. Robert C. Malenka is the Nancy Pritzker Professor of Psychiatry and Behavioral Sciences at Stanford University School of Medicine. He is a leading expert in synaptic plasticity and has conducted extensive research on how neurotransmitter systems affect social behavior and emotional regulation.
Historical Context
Published in Nature in 2013, this study emerged during a period of intense research into the neurobiological basis of social bonding and attachment. The work built on decades of oxytocin research while introducing novel insights about serotonin's role in social reward processing.
Frequently Asked Questions
Narcissistic abuse disrupts the coordination between oxytocin and serotonin in the brain's reward center, making it difficult to experience pleasure from healthy social connections while increasing vulnerability to trauma bonding with abusive partners.
The social reward system becomes dysregulated, making the brain less responsive to genuine kindness while remaining reactive to the intermittent reinforcement patterns typical of abusive relationships.
Yes, through neuroplasticity, consistent healthy relationships and therapeutic interventions can help restore normal oxytocin and serotonin coordination in the social reward system.
While oxytocin typically promotes healthy bonding, in abusive relationships it can create strong attachments even to harmful partners, contributing to the difficulty survivors face in leaving toxic relationships.
Disrupted serotonin function can lead to depression, anxiety, and difficulty experiencing pleasure from social interactions, making recovery and forming new relationships more challenging.
Individual differences in social reward system sensitivity may make some people more susceptible to the intermittent reinforcement patterns that narcissistic abusers use to maintain control.
Recovery timelines vary, but with consistent therapeutic support and healthy relationships, significant improvements in social reward processing can occur within months to years.
Trauma-informed therapy, mindfulness practices, gradual exposure to healthy relationships, and sometimes medication can help restore normal oxytocin and serotonin coordination.