How Hierarchy Shapes the Brain and Why It Matters for Meaning
Not all hierarchies are created equal, and the type we find ourselves in may shape our brain chemistry, our sense of purpose, and — for many men in particular — whether life feels meaningful or hollow. Jordan Peterson popularised the idea that our position within a hierarchy directly regulates serotonin and therefore mood, famously using the lobster as an example of how ancient this circuitry is. While the biological details of that analogy are contested by neuroscientists, the underlying psychological pattern — that where we place ourselves relative to others shapes our nervous system and our felt sense of meaning — holds up well when examined through modern research on competence, growth, and social status.
The Lobster Claim: What’s True and What’s Oversimplified
Peterson’s argument draws on real neuroscience: serotonin is deeply tied to dominance and status signalling in crustaceans, and lower-ranked lobsters that lose fights show reduced serotonin availability, adopt submissive posture, and are more likely to lose future contests — a genuine negative feedback loop. He extends this to argue that humans carry a similar “counter” that tracks hierarchical position and calibrates our ratio of positive to negative emotion accordingly.
However, neuroscientists point out that the comparison oversimplifies things considerably. Lobsters don’t even have a brain in the vertebrate sense — just a cluster of ganglia — and the same neurotransmitter, serotonin, behaves in almost opposite ways in crustaceans versus vertebrates like humans; low serotonin reduces aggression in lobsters but is associated with reduced impulse control and increased aggression in humans. More importantly, human brains are remarkably plastic: studies have found that people who simply perceive themselves as lower status than others show measurable differences in grey matter volume in emotion-processing brain regions, meaning the belief about one’s rank, not just the objective rank, physically reshapes the brain. This matters clinically — it means subordination isn’t fixed biology dictating fixed destiny; the story we tell ourselves about our position is itself a causal input into brain structure.
Two Different Hierarchies, Two Different Brains
Peterson himself draws a crucial distinction that gets lost in the lobster meme: the difference between a pure dominance hierarchy (rank through coercion, intimidation, and power) and a competence hierarchy (rank through demonstrated skill, merit, and voluntary value creation). He argues that human hierarchies function best — and are experienced as meaningful — when they operate on the competence model, where “the top person isn’t the loudest, but the one whose expertise solves problems and benefits the team.” When hierarchies instead collapse into raw dominance or, alternatively, into enforced flatness that ignores merit altogether, Peterson suggests that both produce resentment, inefficiency, and psychological strain.
This lines up closely with self-determination theory, one of the most well-validated frameworks in psychology. It identifies three basic psychological needs that must be met for genuine wellbeing: autonomy (feeling one has genuine choice), competence (the experience of mastery and growing capability), and relatedness (a sense of belonging). Environments that support these needs — through appropriate challenge, meaningful feedback, and the freedom to grow — produce sustained motivation and psychological health. Environments that thwart them, through excessive control, denial of growth opportunities, or coercive pressure, produce the opposite: diminished motivation, alienation, and measurable ill-being.
A growth-oriented hierarchy, in this sense, is one where subordinate positions still offer a genuine pathway to competence and voice. A pure power hierarchy denies this — subordination becomes an end in itself rather than a stage in development.
Why Subordinating Below One’s Potential Breeds Meaninglessness
This is where Peterson’s broader argument becomes clinically relevant: chronic subordination to a hierarchy — particularly one that offers no realistic path to mastery, growth, or voice — appears to produce a specific kind of psychic injury. The lobster research shows that once a nervous system “learns” defeat, subsequent losses become more likely, not because ability has changed, but because internal state has changed: posture, confidence, and willingness to re-engage collapse together in a self-reinforcing loop. Applied to humans, the concern is that repeatedly placing oneself in domains where growth is structurally blocked — jobs beneath one’s competence, relationships without mutual respect, or communities where personal agency is denied — normalises submission as an identity rather than a temporary circumstance.
This maps closely onto findings from the 1991 Whitehall studies, where it wasn’t hierarchy itself but the chronic, unresolved subordination within it that predicted the worst health and psychological outcomes. The critical variable in both the lobster research and the human epidemiological data is not rank alone, but whether the system allows movement, agency, and a credible route back up — a “competence pathway” — versus locking someone into permanent subordination.
The Meaning Crisis in Men
For many men specifically, this dynamic may help explain the rise of nihilism, disengagement, and existential angst frequently discussed in cultural commentary. If competence hierarchies — trades, institutions, sports, fatherhood roles, mentorship structures — erode or become inaccessible, while purely coercive or status-based hierarchies (often amplified by social media) remain highly visible, men may find themselves subordinated without a viable growth pathway. Self-determination theory would frame this as chronic thwarting of the needs for competence and autonomy: when a man’s environment offers no legitimate arena to develop mastery, exercise genuine choice, or be recognised for voluntary contribution, the natural result is the alienation, passivity, and loss of meaning that underlie much of what gets labelled nihilism.
Clinical and Practical Implications
The practical takeaway is not that hierarchy should be abolished, nor that everyone must “win,” but that the type of hierarchy someone inhabits matters enormously for their nervous system and sense of purpose. Clinically, this suggests actively helping clients identify domains — professional, relational, physical, or creative — where a genuine competence pathway exists, however modest the current rank, rather than remaining in purely dominance-based systems that offer no route to growth. Small, voluntarily chosen challenges that build real mastery appear to recalibrate both mood and meaning far more reliably than either resignation to subordination or a purely aggressive bid for dominance. Encouraging men in particular to locate or rebuild competence hierarchies — mentorships, skilled trades, sport, fatherhood, craft — may be one of the more concrete antidotes available to the broader cultural drift toward nihilism and disengagement.
Article is written with the assistance of Perplexity AI.