Music Therapy for Brain Injury: What the Evidence Says About Cognitive Recovery

A traumatic brain injury changes how the brain works — sometimes profoundly. The physical damage is often visible on imaging. What is harder to see, and harder to treat, are the cognitive consequences: the blunted planning, the memory that skips, the attention that drifts, the emotional regulation that feels permanently slightly out of reach. These are the deficits that complicate a return to work, to family, to selfhood. And they are precisely where music therapy is beginning to show some of its most compelling effects. This is not a fringe idea. It is an evidence-supported clinical direction, and the research base is deepening.

What Happens Cognitively After a Brain Injury

Traumatic brain injury — whether from a road accident, a fall, or a sports collision — is a neurological event. The external force disrupts normal brain function, and the consequences rarely stay confined to the physical. Cognitive impairment is among the most prevalent outcomes following TBI, affecting functions that most people never consciously think about until they lose them: the ability to plan a task, hold information in mind, shift attention between demands, and regulate emotional responses.

These are not minor inconveniences. Executive dysfunction — the umbrella term for impairments to planning, cognitive flexibility, working memory, and inhibitory control — sits at the heart of why TBI rehabilitation is so demanding. A patient may regain the physical ability to walk but find that reintegrating into work or independent living remains out of reach because the cognitive scaffolding is still compromised.

It is in this space that allied health has long looked for complementary approaches to support traditional cognitive rehabilitation — and increasingly, music therapy is proving worth that attention.

What Research on 122 TBI Patients Found

A 2023 systematic review published in Applied Neuropsychology: Adult (Alashram et al.) analysed experimental trials from Scopus, PubMed, REHABDATA, PEDro, EMBASE, and Web of Science, examining the effects of music therapy on cognition in TBI patients. Five studies met the inclusion criteria, encompassing 122 patients — and the findings showed that music therapy could be effective in improving executive function after TBI. Evidence for effects on memory and attention was more limited, but not absent.

The methodological quality of the included studies, assessed using the PEDro scale, ranged from four to seven — a median of five. That places the evidence in the moderate range: not definitive, but robust enough to inform clinical practice, particularly given the relatively small pool of trials that have met rigorous inclusion criteria to date.

This finding sits alongside an earlier 2021 systematic review and meta-analysis by Mishra and colleagues, published in World Neurosurgery, which examined both motor and cognitive outcomes of music therapy in TBI patients across six qualifying studies. The motor findings were quantifiable — pooled improvements in gait velocity, cadence, and stride length. The cognitive outcomes pointed in the same direction as the 2023 review: executive function and memory as the primary domains of interest.

Together, these reviews are telling a consistent story. Music therapy is not producing isolated, anecdotal improvements in a handful of patients. The effect is repeatable, and it is measurable.

Why Music Has a Unique Effect on the Injured Brain

The reason music therapy works differently from conventional cognitive exercises lies in how music engages the brain. From a neuroscientific standpoint, music is described as a complex, temporally structured sound language that arouses the human brain simultaneously on sensory, motor, perceptive-cognitive, and emotional levels — stimulating and integrating neuronal pathways in a music-specific way.

That multi-domain engagement is the key. When a patient works with music — whether through rhythmic movement, improvisation, or structured listening — they are not exercising one cognitive pathway in isolation. They are activating networks across the brain simultaneously. Planning, working memory, sustained attention, mental flexibility: these all engage during active music-making. And when these functions are practised consistently, neuroplasticity — the brain’s capacity to reorganise its neural pathways — is activated.

The neuroimaging evidence for this is striking. A randomised controlled trial by Siponkoski and colleagues, published in the Journal of Neurotrauma in 2020, found that a three-month neurological music therapy intervention enhanced executive function in moderate-to-severe TBI patients — and that these effects were underpinned by neuroplasticity changes in the prefrontal cortex, with increased grey matter volume observed in the right inferior frontal gyrus.

A secondary analysis from the same trial, examining diffusion MRI data, went further: music therapy patients showed increased structural connectivity in the right dorsal pathways — including the arcuate fasciculus and superior longitudinal fasciculus — as well as in the corpus callosum and corticostriatal tracts, with mean connectivity gains correlating directly with improved executive function scores. That is not a functional effect. That is a structural change to white matter — physical evidence of rehabilitation-driven rewiring.

This matters for how we frame music therapy in neurorehabilitation. It is not background stimulation. It is, when delivered correctly, a targeted neuroplasticity intervention.

Neurological Music Therapy: Active, Not Passive

Not all music-based approaches are equal, and it is worth distinguishing passive music listening from the structured clinical framework of neurological music therapy (NMT).

NMT is a credentialled, evidence-based system of techniques developed specifically for neurological rehabilitation. Its interventions engage patients actively: through instrument playing, rhythmic movement, vocal work, and improvisation. These activities require the concurrent use of planning, working memory, sustained attention, and mental flexibility — the very domains impaired by TBI. In this sense, NMT functions as cognitive exercise delivered through a modality the brain is primed to respond to.

One of its most researched tools is Rhythmic Auditory Stimulation (RAS) — the use of rhythmic musical cues to entrain movement. Originally applied to gait rehabilitation (where the evidence in TBI is strong, with the Mishra meta-analysis demonstrating a pooled gait velocity improvement of 12.29 cm/second), RAS also has a role in timing-dependent cognitive tasks, where the predictable rhythmic structure provides external scaffolding for impaired internal timing mechanisms.

Music-based cognitive exercises — writing melodies, learning sequences on an instrument, composing improvisationally — engage both cortical and subcortical areas governing attention, working memory, planning, and flexibility, and can modulate these areas over time. The creativity demanded by these exercises is not incidental. It is therapeutic.

At the level of daily clinical practice, this means music therapy sessions bear very little resemblance to a listening exercise. They are structured, goal-directed, and clinically reasoned — delivered by a credentialled music therapist with an understanding of the patient’s neurological profile, rehabilitation goals, and what the brain responds to at that stage of recovery.

Executive Function: Where the Evidence Is Clearest

Of all the cognitive domains assessed in music therapy research, executive function has the most consistent and replicated evidence base. Both the 2023 Alashram review and the 2020 Siponkoski RCT converge on this. The neuroimaging from Siponkoski’s group shows us why: music therapy directly engages and physically alters the prefrontal networks that underpin executive function.

In practical terms, executive function encompasses the abilities a TBI patient most needs to rebuild meaningful independence: planning and sequencing tasks, switching between demands without getting stuck, holding information in mind while acting on it, and regulating impulses. These are not abstract cognitive constructs. They determine whether someone can return to work, manage a household, or navigate social environments without becoming overwhelmed.

Music therapy’s positive effects on executive function in TBI — including set shifting, a specific component of cognitive flexibility — have now been demonstrated across multiple independent research groups, using different patient populations and different music therapy protocols. That convergence is clinically significant.

The broader cognitive rehabilitation literature, as reviewed in Hegde’s foundational 2014 paper in Frontiers in Neurology, describes music as one of the best cognitive exercises from a neuroscientific standpoint, precisely because brain engagement with music simultaneously produces and is shaped by music — a recursive loop that drives plasticity. For executive function specifically, this recursive engagement with planning, sequencing, and real-time decision-making maps almost directly onto the deficits being addressed.

Memory and Attention: The Next Frontier

The 2023 systematic review is candid: evidence for music therapy’s effects on memory and attention is promising but limited. This is not a negative finding — it is an honest appraisal of where the research currently sits, and it reflects the relative scarcity of high-quality trials in this area rather than an absence of effect.

The mechanistic rationale for effects on both memory and attention is sound. Music activates hippocampal circuits involved in episodic memory encoding. Rhythmic entrainment stabilises attentional systems that rely on timing. Emotionally resonant music engages the amygdala and limbic circuits in ways that may enhance memory consolidation. What is missing is not mechanistic plausibility — it is the clinical trial volume needed to produce definitive effect sizes.

This is an active area of research, and the findings emerging from music-based digital interventions combining adaptive feedback, virtual reality, and gamification suggest that the next generation of trials will have more sophisticated outcome measures and longer follow-up periods. Clinicians working in this space now are, in some sense, on the leading edge of a field that is still formalising its evidence base.

That is not a reason for caution. It is a reason to integrate music therapy early, document outcomes rigorously, and contribute to the evidence base that will shape practice over the next decade.

When to Start Music Therapy After Brain Injury

The timing question does not have a single definitive answer, but the direction of the evidence is clear: earlier is better.

Neuroplasticity is at its most responsive in the period immediately following injury, when the brain is in an active state of reorganisation. Waiting until a patient has plateaued in physiotherapy or occupational therapy before introducing music therapy misses a critical window. The clinical model that is gaining traction — and that aligns with what the neuroimaging evidence supports — is early, concurrent integration of music therapy alongside other rehabilitation disciplines.

This is not how music therapy has traditionally been positioned. In many rehabilitation settings, it has been treated as an adjunct — added after primary rehabilitation goals are achieved, or reserved for patients with specific profiles. The evidence no longer supports that sequencing. Music therapy’s effects on executive function appear to complement, rather than duplicate, what occupational therapy and physiotherapy address. The multidisciplinary team approach, with music therapy integrated from early in the rehabilitation process, produces outcomes that none of the disciplines achieves in isolation.

The Funding Gap That Needs to Close

There is an uncomfortable truth that sits alongside all of this evidence: music therapy is not covered by most private health insurance plans in Singapore, or across most of the region. A patient recovering from a traumatic brain injury, whose executive function improvements are documentable on neuro-imaging, cannot claim their music therapy sessions the way they can claim physiotherapy.

Insurance underwriters — we are talking to you.

The research reviewed here is not preliminary. It includes randomised controlled trials with neuro-imaging endpoints. It includes meta-analyses. It includes structural white matter data. The clinical case for music therapy as a legitimate neuro-rehabilitation intervention is not speculative — it is documented and growing. The gap between the evidence base and the coverage framework is a policy failure, and one that disadvantages patients who could benefit significantly.

For families and individuals navigating TBI rehabilitation: the absence of insurance coverage does not reflect the clinical value of music therapy. It reflects a coverage model that has not yet caught up with the science.

Frequently Asked Questions

What is neurological music therapy (NMT)? Neurological music therapy is a credentialled clinical framework that uses specific, evidence-based music interventions to address sensorimotor, language, and cognitive deficits following neurological conditions including traumatic brain injury, stroke, and Parkinson’s disease. It differs from general music therapy in its explicit grounding in neuroscience and its use of standardised, replicable techniques such as Rhythmic Auditory Stimulation and Musical Executive Function Training.

How long does music therapy take to show results after brain injury? The most rigorous trial to date — the Siponkoski RCT — delivered a three-month neurological music therapy programme at two sessions per week, each 60 minutes long. Executive function improvements were measurable at the three-month mark, and structural brain changes were evident on MRI at that point. Some patients show earlier functional gains. Longer programmes appear to consolidate and extend benefits, with follow-up data from 18 months showing sustained improvements in emotional and behavioural self-regulation.

Can music therapy run alongside occupational therapy and physiotherapy? Yes — and the evidence suggests concurrent integration is preferable to sequential delivery. Music therapy engages overlapping but distinct neural networks compared to occupational therapy and physiotherapy, meaning the approaches are complementary rather than duplicative. A coordinated multidisciplinary approach allows goals to be aligned and outcomes to be tracked across disciplines.

Is music therapy covered by health insurance in Singapore? Currently, most private health insurance plans in Singapore do not cover music therapy. This remains an active clinical and policy advocacy issue. The strength of the evidence base for music therapy in neurological rehabilitation has grown considerably in recent years, and the case for coverage reclassification is supported by randomised controlled trial data including neuroimaging outcomes.

Who is music therapy suitable for after a traumatic brain injury? Music therapy has been studied in patients with mild, moderate, and severe TBI. The most robust evidence for cognitive outcomes is in moderate-to-severe TBI. However, patients across the severity spectrum may benefit, and suitability is best assessed by a credentialled music therapist in the context of the patient’s overall rehabilitation goals, cognitive profile, and stage of recovery. Prior musical training is not a prerequisite.