Summary: New brain-imaging research shows that soccer fans undergo rapid shifts in neural circuits for reward and self-control when their team wins or loses against a rival. Victories produce heightened activity in brain reward networks, while defeats suppress the dorsal anterior cingulate cortex (dACC), a region crucial for emotion regulation and cognitive control.
These neural shifts are most pronounced in highly fanatic supporters, providing a biological explanation for sudden emotional “flips” and impulsive behavior during high-stakes rivalry moments. The findings illuminate broader mechanisms that link group identity to polarization and real-world fanaticism.
Key Facts
- Reward surges: Rival-team victories trigger strong activation of reward-related brain regions.
- Control suppression: Rival defeats are associated with reduced activity in the dorsal anterior cingulate cortex, weakening cognitive control.
- Fanaticism effect: The most devoted fans display the greatest imbalance between reward activation and control suppression.
Source: RSNA
Overview: Researchers used functional MRI (fMRI) to study how the brains of soccer fans respond to game events involving their favorite teams. The study, published in the journal Radiology, assessed 60 healthy male fans watching goal sequences from matches involving their favored team, an archrival, or a neutral opponent. Results demonstrate a rapid reconfiguration of valuation and control networks when rivalry is involved.
Soccer fandom spans a wide emotional range, from casual interest to intense identity fusion. That range makes soccer an effective, real-world model for studying how social identity and competition shape emotional responses and behavior. Rivalry intensifies the emotional stakes tied to wins and losses, with clear neural signatures corresponding to those moments.
“Soccer fandom provides a high-ecological-validity model of fanaticism with measurable consequences for health and collective behavior,” said lead author Francisco Zamorano, Ph.D., a researcher at Clínica Alemana de Santiago and associate professor at Universidad San Sebastián in Santiago, Chile. The team designed the study to probe the neurobiological mechanisms of social identity in competitive contexts and to identify how these mechanisms vary with the level of fanaticism.
Participants were evaluated with the Football Supporters Fanaticism Scale, a validated 13-item instrument measuring devotion and dimensions such as inclination to violence and sense of belonging. During fMRI scanning, participants viewed 63 goal sequences. Whole-brain analyses contrasted neural responses to significant victories (the participant’s team scoring against an archrival) with significant defeats (the archrival scoring against the participant’s team), and included non-rival control goals.
The imaging data revealed that rivalry quickly shifts the brain’s valuation–control balance. When a favored team scored against a rival, reward-related regions—including the ventral striatum and medial prefrontal cortex—showed amplified activation compared with non-rival wins. These activations likely reflect intensified in-group bonding and reinforcement of social identity.
Conversely, significant defeats were linked to reduced activation in the dorsal anterior cingulate cortex, an area important for monitoring conflict and exerting cognitive control. That suppression of the dACC corresponds with a transient loss of self-regulatory capacity. At the same time, losses engaged mentalizing and visual networks, consistent with heightened social evaluation and attention to the event.
The imbalance—reward up, control down—was strongest among the most fanatic participants. This pattern predicts moments of self-regulatory failure precisely when identity feels threatened, explaining why otherwise rational individuals can suddenly react impulsively or aggressively during heated matches. The authors describe the phenomenon as a state-dependent vulnerability: brief removal from triggering situations or a cooling-off period may allow control systems to recover.
Dr. Zamorano and colleagues note that the same neural signature probably generalizes beyond sport to arenas such as politics and sectarian conflict, where identity threats amplify reward signals tied to group membership while reducing cognitive control. Recognizing these mechanisms can inform communication strategies, crowd management, and preventive measures at high-stakes public events.
The research also underscores a developmental perspective: caregiving quality, early stress exposure, and social learning shape the valuation–control balance established in childhood. Protecting early development, the authors argue, is a powerful strategy for reducing later vulnerability to fanatic appeals and the societal harms they can produce.
A: Victories amplify brain reward circuits, while defeats suppress cognitive control regions such as the dACC.
A: High levels of fanaticism intensify reward responses and reduce control signals, creating brief vulnerability to impulsive or aggressive actions.
A: Yes. The same reward-up, control-down pattern likely contributes to political and sectarian fanaticism, and it can help explain polarization and mass behavior in other domains.
About this neuroscience research news
Author: Linda Brooks
Source: RSNA
Contact: Linda Brooks – RSNA
Image: The image is credited to Neuroscience News
Original Research: Closed access. “Brain Mechanisms across the Spectrum of Engagement in Football Fans: A Functional Neuroimaging Study” by Francisco Zamorano et al., Radiology (doi reference retained in original publication).
Abstract
Brain Mechanisms across the Spectrum of Engagement in Football Fans: A Functional Neuroimaging Study
Background
Football (soccer) is a global social phenomenon and a valuable model for studying how social identity and competition shape emotional processing. Fans display a wide range of engagement, from casual spectatorship to intense fanaticism. While social affiliation has been extensively researched, the specific neurobiological underpinnings of social identity in competitive contexts remain incompletely understood.
Purpose
To investigate brain mechanisms linked to emotional responses in football fans as they observe their teams’ victories and losses, using functional MRI to capture rapid neural dynamics tied to rivalry.
Materials and Methods
This prospective study (April 2019–October 2022) enrolled healthy male football fans aged 20–45. Participants were classified by fanaticism level using the Football Supporters Fanaticism Scale into spectators, fans, or fanatics. While undergoing fMRI, each participant watched 63 goal sequences drawn from matches involving their favorite team, an archrival, or a neutral opponent. Whole-brain analyses compared neural responses to significant victories and defeats, with multiple-comparison cluster correction applied.
Results
Sixty-one male football followers took part. Significant victories against rivals were associated with increased activation in reward-related regions such as the ventral striatum and medial prefrontal cortex, along with engagement of face-processing areas—consistent with reward processing and social identity reinforcement. Significant defeats elicited activation in mentalizing and visual networks and the precuneus, paired with lower activation in the dorsal anterior cingulate cortex, suggesting diminished cognitive control and altered emotional regulation during rivalry losses.
Conclusion
Football followers show predictable neural responses to rival-related outcomes: wins amplify reward circuitry and reinforce in-group identity, while losses suppress cognitive control networks, increasing vulnerability to impulsive behavior. These mechanisms help explain how fanaticism emerges and escalates, and they offer targets for interventions in crowd management, public safety, and prevention of polarization-driven harm.