Six Systems
The Six Systems is Jason Hreha’s personality model for understanding motivations and predicting behavior. Unlike traditional personality frameworks (e.g., Big Five, HEXACO) based primarily on factor analysis of self-report data, the Six Systems grounds personality traits in neurobiology and explicitly incorporates cognitive ability, a factor often predictive of real-world outcomes that is typically modeled separately from trait frameworks. It identifies six core cognitive and behavioral systems rooted in specific neural networks.
The Six Systems
| System | Function | Neural Basis | Components |
|---|---|---|---|
| Cognition | Problem-Solving & Intelligence | Frontoparietal networks; dopamine/norepinephrine | Logical reasoning, knowledge application, working memory, processing speed |
| Threat Detection | Managing Fear & Anger | Amygdala; cortisol/serotonin | Anxiety, anger, depression, self-consciousness, impulse control |
| Reward Seeking | Motivation & Positive Engagement | Ventral striatum; dopamine | Social connection, group engagement, social leadership, activity drive, thrill-seeking, joy expression |
| Exploration | Curiosity & Creativity | Default mode network | Creative vision, aesthetic appreciation, emotional intensity, experience exploration, intellectual curiosity, belief flexibility |
| Social Cohesion | Trust & Cooperation | Prefrontal/limbic circuits; oxytocin/serotonin | Empathy, morality, altruism, community bonding, trust, integrity, helping behaviors, harmony, status management, compassion |
| Resource Management | Organization & Discipline | Prefrontal-striatal circuits | Self-control, reliability, goal-setting, follow-through, self-efficacy, orderliness, dutifulness, achievement drive, self-discipline |
Key Insight
By grounding personality traits in neurobiology and incorporating cognitive ability (which standard trait models like the Big Five and HEXACO do not include as a core trait dimension), the Six Systems model is intended to improve applied prediction and intervention design. General cognitive ability is among the strongest predictors of job performance and academic outcomes, and this model includes it directly rather than treating it as an external measure. Each system maps to identifiable brain regions and neurochemical pathways, providing a biological foundation for individual differences in motivation and behavior.
Practical Applications
Personal Development
Identify your dominant systems to understand your natural strengths and pinpoint growth areas. Someone high in Exploration but low in Resource Management may generate brilliant ideas but struggle with execution.
Team Dynamics
Build teams with complementary profiles. A balanced team includes members strong in different systems, ensuring both creative ideation (Exploration) and disciplined follow-through (Resource Management).
Leadership and Organizations
Apply the Six Systems framework to hiring, training, and culture design. Match roles to system profiles: sales roles may benefit from high Reward Seeking, while compliance roles require strong Resource Management.
How Systems Interact
Individual systems combine to create distinct behavioral profiles:
- High Cognition + High Exploration = Innovative thinkers who generate novel solutions
- High Threat Detection + High Reward Seeking = Measured risk-takers who pursue opportunities while managing downside
- High Social Cohesion + High Resource Management = Reliable team players who maintain group harmony while meeting commitments
- High Reward Seeking + Low Threat Detection = Bold entrepreneurs willing to take significant risks for potential gains
Relationship to Behavioral State Model
The Six Systems integrates with the Behavioral State Model as the foundation of the Personality component. While the BSM describes what factors determine behavioral states, the Six Systems explains the underlying neurobiological architecture that shapes an individual’s baseline tendencies and motivational patterns.
Together, these frameworks provide both the “what” (BSM’s eight components) and the “why” (Six Systems’ neurobiological basis) of human behavior.