Have you mastered your Psychological Capital?
Psychological Capital Group is led by Sarah Steventon, a Psychotherapist and specialist in Neuropsychology and Psychopathology, with over a decade of experience working in high-performance and corporate environments.
Sarah holds an MSc in Neuroscience of Mental Health from King’s College London, where her research focused on how the brain predicts and regulates threat, risk, and reward — the same mechanisms that underpin anxiety, decision-making, and performance under pressure.
Sarah’s work enhances the ability to manage stress, regulate emotion, and perform under pressure. She specialises in individuals working in sectors that face unusual levels of intensity — banking, hedge funds, private equity, and elite sport.
The Neuroscience of Change
Our brains are constantly adapting — this is how we learn new skills and create new pathways. Using this same principle of neuroplasticity, Sarah’s process helps clients re-wire their responses to pressure, fear, or uncertainty.
With this work, you can create a new, chosen pathway — a different response to the one you are currently experiencing. That means being able to choose how you want to feel in any situation — an invaluable skill in high-pressure decision-making.
This isn’t about managing feelings — it’s about changing them at the source. Tangible shifts are often immediate.
The Hedge Fund Psychologist
Among the elite of the trading world, there’s one common factor:
the ability to operate without fear.
The most successful traders will tell you that their edge isn’t just their strategy — it’s their mindset. Sarah specialises in eliminating fear, often referred to as anxiety, so that you can operate in that elite space.
Clients describe an immediate sense of calm, clarity, and control — the foundation for better decision-making and more rational risk management.
Every successful hedge fund employs a trading psychologist for the same reason elite athletes work with performance coaches: success at the top level requires psychological precision.
Although Sarah has been nicknamed “Wendy Rhoades” by several clients, her approach goes far beyond what you’ve seen on screen. Traditional performance coaching works at a conscious level — focusing on behaviour and strategy. Sarah’s work reaches the neural prediction level of the brain, where responses are generated before you even realise they’re happening.
This unique technique, grounded in neuroscience, removes with precision the emotional patterns that drive around 90% of poor decisions — allowing you to perform with calm focus and complete alignment between logic and instinct.
Alignment: Where Performance Really Starts
Performance isn’t just about skill — it’s about alignment.
You already know how to trade, analyse, and execute strategy. But when execution breaks down under pressure, it’s not a lack of knowledge — it’s misalignment between how your brain processes uncertainty and how you act in the moment.
Sarah’s work helps uncover what drives your behaviour in the market, how you respond under stress, and how to align your neural patterns with consistently optimal performance.
When your trading process aligns with how your mind actually operates, consistency becomes effortless.
And performance follows.
Understanding Fear
‘Fear of missing out.’
‘Fear of losing.’
‘Fear of looking stupid.’
‘Fear of not being good enough.’
Fear is universal in high-pressure environments. It clouds judgment, narrows focus, and drives impulsive behaviour.
Neuroscientifically, fear is the product of your brain’s prediction system.
When the thalamus, hypothalamus, amygdala, and periaqueductal gray (PAG) detect uncertainty, they trigger the body’s threat response — often before conscious awareness.
This is why even experienced professionals can find themselves reacting emotionally before they realise it. Sarah’s work targets this mechanism directly, retraining the brain’s predictive model so that calm becomes the automatic response, not the exception.
The Process
Sarah integrates clinical psychotherapy with neuroscientific methods to recalibrate how the brain handles pressure.
This process helps clients:
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Identify the root causes of reactive behaviour under stress
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Re-wire emotional responses linked to uncertainty and risk
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Restore calm focus and rational clarity
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Achieve alignment between thought, feeling, and performance
The result is a psychological edge — an operating state used by elite traders, executives, and athletes who perform where others falter.
Corporate & Private Work
Sarah works with both individuals and organisations.
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Corporate Programmes: In-house as a Corporate Therapist or Performance Psychologist, offering discreet one-to-one sessions or ongoing access for teams.
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Private Clients: Appointments are available at her London (Marylebone) office and at Thyme, Southrop Manor Estate in the Cotswolds — a private, luxurious setting offering total discretion and comfort.
Because talented people perform best when they feel their best.
The Edge
Financial institutions and high-performance teams increasingly recognise that psychological resilience is the ultimate competitive advantage. The ability to stay calm, focused, and aligned under uncertainty defines the elite.
This is not coaching or advice.
It’s neuroscience-based transformation that enables consistent, confident performance — even in volatility.
When your brain and behaviour align,
clarity follows.
Consistency follows.
Performance follows.