Understanding Internalising and Externalising Behaviours

When we talk about behaviour, we’re really talking about how a person expresses their inner emotional world. Two of the most common patterns we see are internalising behaviours and externalising behaviours. These aren’t labels or diagnoses — they’re simply the ways a nervous system has learned to cope with stress, overwhelm, or unmet needs. Understanding these patterns helps us look beneath the surface and recognise the emotional truth driving someone’s actions.

In this article, Part 1, we’ll explore what internalising and externalising behaviours actually are and how they show up in everyday life. Then, in Part 2, we’ll look at how mindfulness and arts‑based practices can gently support both patterns in ways that feel safe, embodied, and deeply regulating.

What Are Internalising and Externalising Behaviours?

Internalising behaviours are inward‑focused. A person may appear quiet, compliant, or self‑contained, yet inside they’re carrying worry, sadness, fear, or self‑criticism. These individuals often withdraw, shut down, or try to manage everything internally. Their distress is real—it’s just hidden beneath the surface.

Externalising behaviours, on the other hand, are outward‑focused. Emotions spill into the environment through actions like yelling, arguing, impulsivity, or defiance. These individuals aren’t “being difficult”; they’re expressing overwhelm in the only way their nervous system knows how—through movement, intensity, or protest.

Both patterns are adaptive. Both are valid. And both tell a story about what a person has lived through and how they’ve learned to protect themselves.

Why These Patterns Matter

Understanding whether someone tends to internalise or externalise helps you see the emotional landscape beneath their behaviour, rather than getting caught on the surface of what they say or do. These patterns aren’t random; they’re shaped by early experiences, nervous‑system wiring, and the strategies a person learned to stay safe. When you recognise the pattern, you can respond with far more clarity and compassion, because you’re no longer interpreting behaviour as “difficult” or “withdrawn” but as a meaningful expression of how someone has learned to cope.

Internalising often reflects a quiet, inward‑facing coping style — a belief, usually learned very young, that emotions must be held, hidden, or managed alone. People who internalise tend to turn their distress inward through worry, self‑criticism, withdrawal, or over‑functioning. On the outside, they may appear calm, compliant, or self‑contained, but internally they may be carrying a heavy emotional load. This pattern is less visible, which means internalisers are often overlooked or praised for being “easy,” even while they’re struggling.

Externalising, on the other hand, reflects a nervous system that releases emotional energy outward when it becomes too much to hold inside. This can look like anger, impulsivity, defiance, or big emotional reactions. These behaviours are often misunderstood as intentional or oppositional, when in reality they’re signs of overwhelm — the body’s attempt to discharge tension quickly. Externalisers are noticed more readily, but they’re also more likely to be judged, corrected, or shamed rather than supported. Seeing the pattern for what it is allows you to meet the person with regulation, boundaries, and attunement rather than frustration.

Neither pattern is “good” or “bad”; they’re simply different ways the human nervous system tries to stay safe. When you look beneath the surface, both internalising and externalising are attempts to manage feelings that feel too big, too fast, or too overwhelming. One person turns inward to contain the intensity, another releases it outward to find relief — but the underlying need is the same. Seeing this clearly helps you move away from judgement and toward understanding, because you recognise that every behaviour is rooted in a longing for steadiness and connection.

Both expressions are shaped by lived experience, temperament, and the strategies someone learned to cope long before they had language for what they were feeling. Internalising and externalising are simply two sides of the same human story: the need to feel safe, seen, and supported. When you understand this, you can meet yourself — and others — with far more compassion. Instead of trying to “fix” the behaviour, you can respond to the need underneath it, offering presence, regulation, and gentle attunement that helps the nervous system settle and feel held.

How Mindful Arts Therapy Supports Internalising Behaviours

Mindful arts therapy offers a gentle, non‑verbal pathway for people who internalise their emotions because it removes the pressure to speak, explain, or perform. When someone is used to holding everything inside, even simple questions like “How are you feeling?” can feel overwhelming or intrusive. Creative processes bypass that pressure entirely. Through colour, movement, and texture, internalisers can express what’s happening beneath the surface in a way that feels contained, private, and safe. The art becomes a buffer — a soft space where emotions can emerge gradually, without needing to be named before they’re ready.

This approach also helps internalisers reconnect with their own emotional signals at a pace that feels manageable. Instead of pushing themselves to open up verbally, they can explore their inner world through small, sensory steps that regulate the nervous system. As they make marks, choose colours, or follow gentle prompts, they begin to notice feelings they may have learned to suppress or minimise. Over time, this builds emotional awareness and self‑trust. The creative process becomes a bridge — allowing internalisers to express, release, and understand their emotions without abandoning the quiet, thoughtful way they naturally move through the world.

Through slow, sensory‑based activities — soft colour washes, repetitive mark making, clay work, or mindful collage — internalisers can begin to externalise their emotions in a way that feels gentle and manageable. These processes offer a steady rhythm that helps the body settle and creates just enough distance from the feeling to make it feel safe to explore. Instead of being asked to speak or analyse, the person can let their inner world appear gradually through movement, colour, and texture. This shift from holding everything inside to allowing something to emerge on the page is often the first step toward emotional relief and self‑expression.

As internalisers work with these creative practices, they naturally reconnect with their body and soften the perfectionism that often keeps their emotions tightly contained. The focus on process rather than outcome builds trust in their own emotional expression — a trust that may have been disrupted by past experiences of not feeling heard, supported, or safe. Over time, they begin to learn that their feelings can be shared, held, and witnessed without fear. The art becomes a bridge between their inner world and the outer one, helping them experience emotional expression as something that can be gentle, supported, and deeply human.

How Mindful Arts Therapy Supports Externalising Behaviours

For people who externalise, mindful arts therapy offers a steadying structure that helps contain and guide big emotions rather than suppress them. When someone’s feelings tend to spill outward through intensity, impulsivity, or sudden reactions, creative processes provide a safe outlet where that energy can move without causing harm. The materials themselves — paint, clay, paper, movement — become a channel for expression, giving the nervous system a way to release pressure in a controlled, grounded way. Instead of being told to “calm down” or “stop reacting,” the person is invited into an activity that naturally absorbs and redirects their emotional charge.

These sensory‑rich practices also help externalisers build the internal skills they often struggle with: slowing down, noticing what’s happening in their body, and staying connected to themselves during moments of activation. The rhythm of mark making, the resistance of clay, or the layering of collage offers a physical anchor that brings them back into the present moment. Over time, this creates a felt sense of safety and containment. They begin to experience their emotions not as something explosive or overwhelming, but as something that can be shaped, expressed, and understood. Through this process, externalisers learn that intensity can be met with grounding rather than fear, and that their emotional world can be held with support rather than judgement.

Activities like expressive painting, large‑scale drawing, tearing paper, or working with natural materials allow externalisers to move their emotions through the body in a way that feels both active and regulated. These creative processes give intensity somewhere to go — into colour, movement, texture, and physical engagement — rather than spilling out through impulsive reactions or overwhelm. The body gets to release energy, but within a container that feels safe and purposeful. This helps externalisers experience emotional expression not as something chaotic or explosive, but as something that can be shaped, directed, and understood through the creative act itself.

When mindfulness is woven into these activities, it adds a layer of awareness that externalisers often need but rarely get taught. Slowing down to notice sensations, breath, and the rhythm of their movements helps them build the capacity to pause before reacting. Over time, this strengthens the internal resources that support emotional regulation — things like interoception, self‑awareness, and the ability to recognise early signs of activation. As these skills grow, externalisers begin to feel more in control of their emotional world, not by suppressing their intensity, but by learning how to meet it with grounding, presence, and choice.

In Closing

Whether someone turns inward or outward, their behaviour is a message from the nervous system — a signal that something inside needs support, safety, or space. Mindful arts therapy listens to that message with gentleness rather than judgment. It creates a soft, creative environment where emotions can move, settle, and be understood without pressure. In this space, creativity becomes a form of regulation, helping people express what feels too big for words and reconnect with themselves in a grounded, compassionate way.

As you explore these ideas, you’ll begin to see how both internalising and externalising patterns are simply different ways of coping with overwhelm. Mindful arts therapy doesn’t try to change these patterns through force; it supports them through understanding. If you’d like to go deeper into how this approach specifically supports each behaviour and how different art materials work, you can continue on to Part 2 — a closer look at how mindful arts therapy meets both internalisers and externalisers with exactly what they need.