Expat Sarah walked into my Đà Lạt clinic looking like she’d been wrestling with invisible demons—and losing. ‘I’m very left-brained,’ she announced during our second session, as if confessing to some fundamental character flaw. ‘That’s why I can’t access my emotions. My last therapist said I need right-brain work to heal my trauma.’
She’d just spent six months and several thousand dollars on what her previous therapist called ‘brain-based therapy’—a programme that promised to target her ‘overactive left hemisphere’ and ‘activate her dormant right-brain creativity.’ The theory sounded impressively scientific. The results? She was frustrated, confused, and no closer to understanding why relationships felt like navigating a minefield blindfolded.
This scenario has become depressingly familiar in my practice over the past few years. Well-meaning therapists, armed with pop neuroscience soundbites that wouldn’t pass muster in a first-year psychology tutorial, are inadvertently limiting their clients’ growth by reducing the magnificent complexity of human experience to a simplistic hemispheric dualism that neuroscience abandoned sometime around when Kylie Minogue was still on Neighbours.
The seductive simplicity of brain halves
The left-brain versus right-brain narrative is compelling in the same way that horoscopes are compelling—it offers neat categories for messy human experiences. Logical versus creative. Analytical versus intuitive. Verbal versus visual. It gives both therapists and clients a framework that feels scientifically grounded whilst seemingly explaining why someone might struggle with emotional expression or creative thinking.
This false dichotomy has spawned an entire cottage industry of ‘brain-based’ therapeutic interventions. Browse any therapy website these days and you’ll find practitioners advertising ‘right-brain therapy for trauma,’ promoting ‘left-brain analytical processing,’ and designing treatment plans around ‘balancing the hemispheres.’ Some therapists even claim to diagnose ‘hemispheric dominance’ and tailor interventions accordingly, as if the brain were a seesaw that needed careful weight distribution.
The problem? None of this reflects how the brain actually works. It’s about as scientifically accurate as claiming you can improve your tennis game by focusing exclusively on your left shoelace.
What neuroscience actually tells us
The hemispheric specialisation myth persists despite overwhelming evidence against it, like a particularly stubborn urban legend that refuses to die no matter how many times it’s debunked. While it’s true that certain brain regions show some functional lateralisation—the brain isn’t perfectly symmetrical—the idea of discrete ‘left-brain’ and ‘right-brain’ thinking is neuroscientific nonsense of the highest order.
Modern neuroimaging studies consistently demonstrate that complex cognitive and emotional processes involve extensive bilateral brain networks. Language processing, long considered the sacred domain of the left hemisphere, actually requires significant right-hemisphere contributions for prosody, context, and emotional content. When you understand the sarcasm in someone’s voice or pick up on the emotional undertones of a conversation, you’re using both hemispheres working in concert, not just your supposedly logical left brain.
Similarly, spatial processing, creativity, and emotional regulation—supposedly ‘right-brain’ functions according to popular mythology—involve intricate networks spanning both hemispheres. Creativity, in particular, emerges from the dynamic interaction between multiple brain networks, including the default mode network, the executive attention network, and the salience network, all of which involve bilateral brain regions working together like a well-rehearsed orchestra.
The brain operates as an integrated system where the corpus callosum—that thick bundle of nerve fibres connecting the two hemispheres—facilitates constant interhemispheric communication. As neuroscientist Michael Gazzaniga, who conducted the original split-brain studies that inadvertently spawned this hemispheric mythology, has repeatedly emphasised, the intact brain functions as a unified system. The idea that we can neatly divide psychological functions into left-brain and right-brain categories is, in his words, ‘pop psychology nonsense.’
The clinical consequences of neuromythology
When I hear therapists talking about targeting specific brain hemispheres, I feel the same way I imagine a mechanic feels when someone asks them to fix their car by focusing exclusively on the left-side tyres. It’s not just scientifically inaccurate—it’s therapeutically limiting and potentially harmful.
Take trauma therapy, where the left-brain/right-brain myth has particularly taken root. Many trauma therapists now operate under the assumption that trauma is ‘stored in the right brain’ and that healing requires ‘right-brain interventions’ like art therapy, movement, or sensory work, while verbal processing is dismissed as ineffective ‘left-brain’ activity.
This creates a false therapeutic hierarchy where some interventions are considered more ‘brain-appropriate’ than others. Clients like Sarah become convinced that their natural inclination towards verbal processing or analytical thinking is somehow pathological—a barrier to healing rather than a potential resource.
The reality is that trauma affects multiple brain systems and networks, not just one hemisphere. Effective trauma treatment typically involves integrating various approaches that engage different neural networks, but not because we’re trying to balance brain hemispheres. We’re working with the complex, interconnected systems that support memory, emotion regulation, narrative coherence, and interpersonal connection.
When we reduce trauma treatment to simplistic hemispheric targeting, we miss opportunities for genuine integration and healing. Worse, we can inadvertently shame clients for their natural cognitive styles and preferences.
The real neuroscience of therapeutic change
Here’s what actually happens in effective therapy, according to current neuroscience research. Therapeutic change involves the modification of existing neural networks and the formation of new ones through a process called neuroplasticity. This occurs through repeated experiences that gradually shift how information is processed, stored, and retrieved.
The therapeutic relationship itself creates conditions for neural change through processes like co-regulation, where the therapist’s regulated nervous system helps stabilise the client’s dysregulated system. This isn’t about activating specific hemispheres—it’s about creating new patterns of neural connectivity through safe, attuned interpersonal experiences.
Different therapeutic interventions engage different neural networks, but not in the simplistic left-brain/right-brain way that popular neuroscience suggests. Cognitive approaches work with prefrontal regions involved in executive function and meaning-making. Somatic approaches engage interoceptive networks that help clients attune to bodily sensations. Narrative therapies strengthen the default mode network’s capacity for self-reflection and autobiographical reasoning.
The magic happens not through hemispheric balancing, but through the integration of these various networks into more flexible, adaptive patterns of functioning. It’s like upgrading your computer’s operating system rather than just running programmes on one side of the processor.
A better way forward
So how do we move beyond neuromythology whilst still honouring the genuine insights that neuroscience offers therapy? We start by embracing complexity rather than running from it.
Instead of asking whether a client is ‘left-brained’ or ‘right-brained,’ we might explore how their unique cognitive and emotional patterns serve them in some contexts whilst creating difficulties in others. Instead of targeting hemispheres, we can work with the actual neural processes involved in the changes we’re hoping to facilitate.
For someone like Sarah, this meant helping her understand that her analytical nature wasn’t a barrier to emotional healing—it was a resource. Her capacity for reflection and meaning-making could actually support her trauma recovery when paired with interventions that also engaged her emotional and somatic systems.
We worked together using a variety of approaches that honoured both her cognitive strengths and her need for emotional integration. Sometimes this looked like traditional talk therapy, where her analytical skills helped her identify patterns and make connections. Other times it involved mindfulness practices that helped her attune to bodily sensations without needing to immediately analyse them. Occasionally we used creative exercises, not because they were ‘right-brain’ activities, but because they offered different pathways for processing and expressing her experiences.
The key was integration, not hemispheric balancing. We weren’t trying to shut down her analytical mind or force her to become someone she wasn’t. We were expanding her repertoire of ways to process and respond to her experiences.
The bigger picture
The persistence of the left-brain/right-brain myth in therapy reflects a broader challenge in our field—the tendency to oversimplify complex neuroscience research in ways that sound impressive but ultimately limit our effectiveness. It’s the therapeutic equivalent of those dodgy diet ads that promise quick fixes based on ‘breakthrough scientific research.’
Real neuroscience is messy, complex, and often uncertain. It doesn’t offer the neat categories and simple solutions that many therapists and clients crave. But it does offer something far more valuable—a nuanced understanding of how human brains actually function and change.
When we embrace this complexity rather than reducing it to soundbites, we become better therapists. We stop trying to fit our clients into simplistic neurological categories and start working with the intricate, beautiful, and utterly unique neural systems that make each person who they are.
We also avoid the trap of what I call ‘neuroscientific bypassing’—using brain-based explanations to avoid the harder work of sitting with clients in their confusion, pain, and uncertainty. Sometimes the most therapeutic thing we can do is simply be present with someone’s experience without immediately trying to explain it in terms of neural networks or hemispheric activity.
From neuromyth to neural reality
Six months after our work together, Sarah sent me an email that made my day. She’d started a new job that required both analytical thinking and creative problem-solving. Instead of seeing these as conflicting demands that required different parts of her brain, she experienced them as complementary aspects of her thinking that could work together beautifully.
‘I used to think I was broken because I couldn’t turn off my analytical mind,’ she wrote. ‘Now I realise that was never the problem. The problem was thinking my mind was the enemy instead of an ally.’
This shift—from seeing cognitive styles as pathological to understanding them as resources—represents the kind of therapeutic change that happens when we move beyond neuromythology towards a more sophisticated understanding of how brains and minds actually work.
The irony is that by abandoning simplistic left-brain/right-brain thinking, we don’t lose anything valuable. We gain a richer, more nuanced appreciation for the remarkable complexity of human consciousness and the myriad ways that people can heal and grow.
Perhaps most importantly, we create space for our clients to be fully themselves rather than trying to fit them into neurological boxes that never existed in the first place. And in a world that’s already full of categories and labels designed to limit human potential, that feels like genuinely therapeutic progress.
After all, the most sophisticated computer ever created sits between our ears, with its roughly 86 billion neurons forming trillions of connections in patterns more complex than anything we’ve yet managed to fully comprehend. Surely such a remarkable system deserves better than being reduced to a simple left-versus-right dichotomy.
Our clients certainly do.
Sources
Beaty, R. E., Kenett, Y. N., Christensen, A. P., Rosenberg, M. D., Benedek, M., Chen, Q., … & Silvia, P. J. (2018). Robust prediction of individual creative ability from brain functional connectivity. Proceedings of the National Academy of Sciences, 115(5), 1087-1092.
Gazzaniga, M. S. (2013). The split-brain: Rooting about in consciousness. Proceedings of the National Academy of Sciences, 110(4), 1364-1365.
Nielsen, J. A., Zielinski, B. A., Ferguson, M. A., Lainhart, J. E., & Anderson, J. S. (2013). An evaluation of the left-brain vs. right-brain hypothesis with resting state functional connectivity magnetic resonance imaging. PLoS One, 8(8), e71275.
Vigneau, M., Beaucousin, V., Hervé, P. Y., Duffau, H., Crivello, F., Houdé, O., … & Tzourio-Mazoyer, N. (2006). Meta-analyzing left hemisphere language areas: phonology, semantics, and sentence processing. NeuroImage, 30(4), 1414-1432.
Siegel, D. J. (2012). The developing mind: How relationships and the brain interact to shape who we are (2nd ed.). Guilford Press.
van der Kolk, B. A. (2014). The body keeps the score: Brain, mind, and body in the healing of trauma. Viking.
Doidge, N. (2007). The brain that changes itself: Stories of personal triumph from the frontiers of brain science. Viking.
About the author
Lee Hopkins is a counselling psychologist based in Đà Lạt, Vietnam. He specialises in neurodiversity, trauma recovery, and communication coaching. His work can also be found at Letters from the Quiet Half on Substack.
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