Transcranial magnetic stimulation sends magnetic pulses into the brain circuits tied to depression, OCD, anxiety, and chronic pain. No drugs. No surgery. You sit in a chair, feel a tapping on your scalp for 20 to 40 minutes, and then go home.
That’s genuinely it.
If you want to know what’s actually happening inside your brain before you walk into a consult, here’s what the research says in plain language.
What TMS Does to the Brain?
A coil sits on your scalp and generates a magnetic field. That field passes straight through your skull – no drilling, no cutting, nothing touching brain tissue. Magnets do that. Electrical current can’t.
Underneath the coil, a tiny current forms in the neurons. They fire.
One session on its own? Not much happens. But over 35 sessions across seven weeks, something real starts to change. Sluggish circuits begin firing properly. Circuits are stuck running too hot, which is what’s happening in OCD and a lot of anxiety presentations start to calm down.
The scientific term is neuroplasticity, but that’s really just a formal word for the brain rebuilding how its circuits connect.
This is also why the effects don’t just fade when treatment ends. The wiring itself is different. It’s not like stopping medication.
TMS HUBB offers Medicare bulk-billed TMS at Brisbane and Queensland clinics for eligible patients.
What’s Actually Broken And Where
Depression
Depression isn’t a character flaw. It’s also not the simple chemical imbalance story that got repeated for decades – that explanation was always a bit of an oversimplification.
Brain scans of people with major depression consistently show reduced activity in the left dorsolateral prefrontal cortex – the DLPFC. This region handles mood regulation, keeps emotional reactions from spiralling, and supports focused thinking.
When it slows down, it loses its grip on the limbic system – the part of the brain that drives emotional responses. Without that input, the limbic system just runs hot.
That’s what depression looks like from inside a skull.
Antidepressants try to correct this by lifting serotonin or norepinephrine across the entire brain. For plenty of people that works fine. But roughly 30% don’t get real benefit – even after cycling through several different medications. And others stop taking them before finishing a proper trial because the side effects make daily life worse, not better. Weight gain, sexual dysfunction, emotional flatness – those aren’t trivial complaints.
OCD
OCD is a different beast, and it lives in a different part of the brain entirely.
The orbitofrontal cortex connects to the striatum and thalamus in a loop. In OCD, that loop gets jammed. Intrusive thought arrives. Compulsion follows. The urge quiets down for a bit. Then it starts again. Understanding the thought is irrational doesn’t do anything about it – the circuit fires whether you want it to or not.
Chronic Pain
Chronic pain isn’t always a tissue problem. When pain keeps going past normal healing, the brain can get stuck in a state called central sensitisation. The motor cortex and anterior cingulate cortex become hypersensitive and start amplifying signals beyond what the injury actually calls for. The patient isn’t exaggerating their pain. Their brain has quite literally recalibrated upward and is genuinely producing that experience.
TMS approaches all three differently – different coil positions, different frequencies, different targets.
Where the Coil Actually Goes
Depression and Anxiety
For depression, high-frequency stimulation goes to the left DLPFC – the underperforming region. The aim is getting it firing reliably again and rebuilding its downstream connections.
Anxiety needs a different approach. With generalised anxiety, it’s usually the right DLPFC driving too much amygdala activity. So for anxiety, low-frequency TMS goes to the right side. The goal there is reducing activity, not boosting it. Same technology, opposite intention.
Before the first session, TMS HUBB clinicians individually map each patient’s brain. They find the exact scalp position above the target for that specific person – not a population average, not an approximation. It’s a step a lot of patients don’t know about until they’re there. But skipping it means placing the coil roughly right. Doing it means placing it precisely.
More on depression treatment and anxiety treatment at TMS HUBB.
OCD
TMS OCD treatment targets the supplementary motor area – not the prefrontal cortex, which is where most people assume it goes.
The SMA is the entry point of the loop driving OCD’s compulsion cycle. Standard coils can’t reliably get there. Deep TMS with an H7 coil can, because it penetrates further into cortical tissue.
A randomised controlled trial published in the American Journal of Psychiatry looked at patients who’d already failed both medication and CBT – people with basically no options left. 38% had meaningful clinical improvement. That figure sounds unimpressive until you consider who these patients were. Almost nothing gets results in that group.
Read about OCD treatment at TMS HUBB.
Chronic Pain
TMS to the motor cortex doesn’t block pain or numb anything. What it does is interrupt central sensitisation – the pattern where the brain keeps turning up the volume on pain signals past what the injury warrants. Across a full course, it gradually retrains that response.
People with fibromyalgia, neuropathic pain, and post-surgical chronic pain have reported genuine, lasting improvement. But it’s not a one-session fix – it builds across the whole course.
Read about chronic pain management with TMS.
What Does the Actual Transcranial magnetic stimulation Course Look Like?
You’ll need a GP or psychiatrist referral before anything else. From there, TMS HUBB clinics across Brisbane and Queensland take you through five stages.
First, a psychiatrist assessment. A TMS psychiatrist reviews your full history – what medications you’ve tried, how long, what happened. They also check for contraindications: metal implants near the head, a seizure history, anything that would make TMS a bad idea. This consultation costs $220 out of pocket. That’s the only expense. All 35 treatment sessions after this are bulk-billed under Medicare for eligible patients.
Then brain mapping. The team measures your motor threshold – the minimum stimulation your motor cortex responds to. This is how the machine gets calibrated to your brain rather than a textbook average. Coil position is confirmed precisely above the target region. The whole thing takes about 30 minutes and only happens once.
The 35 sessions. Five days a week, seven weeks. Each session is 20 to 40 minutes. People usually describe the sensation as tapping or a light knocking feeling. Week one can be a bit unpleasant. By week two most patients have tuned it out entirely.
Monitoring throughout. If there’s no sign of movement by week three, the settings get adjusted. Nobody leaves you running on a protocol that isn’t working.
After the course. Monthly maintenance sessions are available. They’re optional, but most patients do them – the evidence for sustained outcomes is strong enough that it’s worth it.
Transcranial magnetic stimulation vs. Antidepressants: A Quick Comparison
| Factors | TMS | Antidepressants |
| Mechanism | Targets specific circuits directly | Adjusts neurochemistry brain-wide |
| Common side effects | Mild headache, scalp sensitivity in week 1 | Weight gain, fatigue, sexual dysfunction, nausea |
| When effects appear | 2 to 4 weeks | 4 to 8 weeks |
| After medication fails | Works for a real proportion of patients | Very few options remain |
| Daily commitment | No | Yes |
| Cognitive effects | No impairment found in research | Emotional blunting reported by some |
These aren’t competing options. Plenty of patients use both. But after two failed medication trials, TMS is the standard next clinical step – not some experimental fallback you try when you’ve run out of ideas.
Who Should Consider Transcranial magnetic stimulation?
Worth raising with your doctor if you’ve got depression, anxiety, OCD, PTSD, or chronic pain and at least one of the following is true:
- Antidepressants haven’t helped, or the side effects were too much to manage
- You need treatment that won’t interfere with driving, work, or clear thinking
- You’re 18 or over with no metal implants near your head
DVA patients and WorkCover patients both have separate funded access arrangements through TMS HUBB.
Next Step
If medication hasn’t worked or the side effects made it not worth it – Transcranial magnetic stimulation is a clinically backed alternative. Medicare covers 35 sessions for eligible patients. No surgery, no daily pills, no downtime.
TMS HUBB has clinics at Stones Corner, Loganholme, and Brisbane CBD.
Book a consultation or ask your GP to submit a referral form.
Frequently Asked Questions
What does TMS actually treat?
Major depressive disorder, anxiety disorders, OCD, PTSD, and chronic pain. Medicare in Australia funds it for treatment-resistant depression – meaning patients who’ve tried antidepressants and didn’t get adequate relief. At TMS HUBB, all 35 sessions are bulk-billed for eligible patients.
How does it reach the brain without going through the skull?
Magnetic fields pass through bone. That’s really the core of it. Electrical current can’t block the skull, which is why older brain stimulation methods needed electrodes or surgery to work. TMS skips that entirely. The rapidly changing magnetic field at the scalp surface induces a small current in the tissue below, neurons fire, and after 35 sessions of this the brain’s circuits start to structurally change.
Does it actually work for OCD when medication hasn’t?
For a real proportion of patients, yes. The H7 coil reaches the supplementary motor area deeper in the cortex and disrupts the loop behind OCD’s intrusive-thought-compulsion cycle. In a published trial, 38% of medication-resistant patients responded. Nothing else non-surgical has consistently matched that in this group.
How long before you notice something?
Weeks 2 to 4 for most people. Some shift earlier. Others don’t notice much until near the end of the course and keep improving for weeks after it finishes – neuroplasticity keeps developing after the sessions stop. A smaller number needs mid-course adjustments. The full course is 35 sessions, about seven weeks.
\What are the actual risks?
Memory loss and cognitive impairment come up constantly but those are risks associated with ECT, not TMS. They’re genuinely different treatments. TMS is non-invasive, targets a small specific area, and doesn’t induce a seizure across the whole brain.
The real side effects are mild headache and scalp tenderness in week one. Both pass. Seizure risk is around 1 in 50,000 – that’s comparable to, or lower than, what’s listed in the prescribing information for several antidepressants already widely prescribed in Australia.
Medicare coverage in Queensland?
Yes, 35 sessions funded for treatment-resistant depression, all bulk-billed at TMS HUBB. You need a GP or psychiatrist referral and an initial psychiatrist consultation ($220 out of pocket) before starting. DVA and WorkCover patients access treatment through their own separate arrangements.