TMS may reduce depression symptoms for some people when medication or therapy has not helped, but outcomes vary, response differs from remission, and treatment takes weeks.
Does TMS work for depression?
Transcranial magnetic stimulation (TMS) can help some people with major depressive disorder, particularly when antidepressant medicines, talking therapies or both have not brought enough improvement. It is not a guaranteed treatment, and it does not work in the same way for everyone. An honest discussion of TMS should include both the possibility of meaningful improvement and the uncertainty that comes with any mental health treatment.
TMS uses magnetic pulses applied to specific areas of the scalp. These pulses are intended to influence brain networks involved in mood regulation. Treatment is usually provided on weekdays over several weeks, with a standard course often involving about 36 sessions across six to nine weeks.
TMS was cleared by the US Food and Drug Administration for major depressive disorder in 2008. In 2021, it was also cleared for depression with comorbid anxiety. A clinician should still assess whether it is suitable for your individual symptoms, medical history and treatment needs.
What “response” means
In TMS research and clinical practice, response usually means that depressive symptoms have reduced substantially from where they were at the start of treatment.
A common research definition is a reduction of around half on a recognised depression rating scale. These scales ask about symptoms such as low mood, sleep, appetite, energy, concentration, guilt, hopelessness and thoughts of self-harm. The exact questionnaire and scoring method may vary between studies and clinics.
A response does not necessarily mean that depression has gone away. Someone may respond to TMS and still have some symptoms, but feel noticeably better able to get through the day. For example, they may be sleeping more regularly, finding work or family responsibilities more manageable, or experiencing fewer days of overwhelming low mood.
Response can be important in its own right. A substantial reduction in symptoms may help a person re-engage with therapy, routines, relationships and other forms of support. However, it is different from remission.
What “remission” means
Remission generally means that a person’s depression has improved to the point that they have few or minimal symptoms on a clinical rating scale.
In everyday language, people may describe remission as feeling like themselves again, or no longer meeting the usual threshold for a depressive episode. But the experience can be more gradual and individual than that wording suggests. A person may be in remission while still needing ongoing treatment, support and attention to relapse prevention.
Remission is usually considered a stronger outcome than response. If response means symptoms have fallen substantially, remission means symptoms are low enough that depression is no longer having the same active, day-to-day impact.
Neither term should be treated as a promise. Depression symptoms can change over time, and a person’s own view of recovery matters alongside questionnaire scores. A clinician may ask not only whether symptoms have reduced, but whether you are functioning better and whether the changes feel meaningful to you.
What published trials broadly show
Published clinical trials of TMS for major depressive disorder generally show that a meaningful proportion of people improve, while a smaller proportion reach remission. Results are often discussed in terms of response and remission because these outcomes give a clearer picture than asking only whether average scores improved.
The evidence is strongest for people with depression that has not improved sufficiently with previous treatments. TMS is commonly considered after one or more antidepressant approaches have not provided adequate benefit or have caused difficult side effects.
It is important to read trial findings carefully. Studies may differ in the type of TMS used, the treatment schedule, the severity of participants’ depression, whether they were taking antidepressants at the same time, and the measures used to define success. Results from a carefully selected research group may not translate exactly to every person receiving treatment in routine care.
For this reason, no responsible clinic or directory can tell an individual in advance that TMS will work for them. Trial findings can show that TMS is an evidence-based option for depression; they cannot predict one person’s outcome with certainty.
Why results vary from person to person
Depression is not a single, uniform illness. People can have different symptom patterns, causes, co-existing conditions and treatment histories. These differences may affect how they experience TMS and whether it leads to response or remission.
Factors that may be relevant include:
- how long depression has been present and how severe it is;
- whether previous antidepressant medicines or therapies have helped;
- whether anxiety, trauma-related symptoms, substance use, chronic pain or other health conditions are also present;
- sleep, stress, social support and major life pressures;
- attendance at the planned course of sessions;
- whether other treatments, such as medication management or psychotherapy, continue alongside TMS.
This does not mean that people should blame themselves if treatment does not work as hoped. Many factors are outside a person’s control. It does mean that assessment and follow-up matter. A treating clinician can review progress during the course, discuss any changes in symptoms and consider the wider treatment plan.
Some people notice changes early, while others notice improvement later in the course. Others may not feel a meaningful benefit. If progress is limited, the clinician may discuss whether the current approach remains appropriate and what other options should be considered.
TMS is usually part of a wider plan
TMS is often used alongside, rather than instead of, other aspects of depression care. Depending on the person, this may include medication, psychological therapy, support for sleep and daily routine, or treatment for related anxiety.
It is important not to stop prescribed medication or change treatment without speaking to the clinician responsible for your care. If you are considering TMS, ask how it would fit with treatments you already use and who will coordinate your care.
You may also want to ask what happens after the initial treatment course. Some people remain well after treatment, while others may need ongoing monitoring or further treatment if symptoms return. Your clinician can explain how they approach follow-up and relapse planning.
What treatment feels like
TMS is non-invasive and does not involve surgery or anaesthesia. During a session, you remain awake while a magnetic coil is positioned against the scalp. The treatment can feel like tapping or knocking on the head.
Common side effects include scalp discomfort and headache, particularly early in treatment. These are usually temporary, but it is still important to tell the treatment team about any discomfort or concerns. Seizure is a rare risk, which is one reason a clinical screening assessment is needed before treatment begins.
A clinic should explain the expected schedule, likely side effects, safety screening and how it will monitor your progress. It should also make clear that benefit cannot be guaranteed.
Questions to ask an Ohio TMS provider
Ohio residents have a range of local options to explore. TMS Therapy Ohio currently lists 91 published clinics, including listings in Cincinnati, Mason, Beachwood, Cleveland, Hilliard, Columbus, Sandusky, Youngstown, Akron, Dublin, Centerville and Maumee.
When comparing providers, consider asking:
- How do you assess whether TMS is appropriate for me?
- How will you measure response and remission during treatment?
- What type of TMS do you provide, and what schedule do you recommend?
- Who will oversee my treatment and communicate with my existing prescriber or therapist?
- What happens if I do not improve, or if symptoms return later?
- Which insurance plans do you work with, and what authorisation may be required?
Insurance arrangements vary by plan and provider. In Ohio, carriers commonly seen include Anthem Blue Cross and Blue Shield, Medical Mutual of Ohio, UnitedHealthcare, Aetna, Cigna, Humana, Ohio Medicaid managed care plans and Medicare. Check directly with both the clinic and insurer before starting treatment.
Getting help in Ohio
Explore TMS Therapy Ohio’s clinic listings to find published providers across the state, read the insurance guide for practical coverage questions, or use the contact page for help navigating the directory.
This is educational information, not medical advice.
This page is informational and is not medical advice.