Understanding Theta Burst Stimulation and Its Role in TMS Treatment for Depression

Mental health care has seen many advances in recent years, and one of the most promising treatments is Transcranial Magnetic Stimulation (TMS). If you’ve heard about TMS but aren’t sure what it involves, you’re not alone. I want to explain what TMS is and then focus on a specific type called Theta Burst Stimulation (TBS). At NeuVista Mental Health in Wilmington, NC, in addition to rTMS, we offer both intermittent Theta Burst Stimulation (iTBS) and continuous Theta Burst Stimulation (cTBS) using our Magstim Horizon machine. This post will help you understand what TBS is, how it works, and why it might be a good option for you.

Close-up view of a Magstim Horizon TMS machine

What Is Transcranial Magnetic Stimulation (TMS)?

TMS is a non-invasive treatment that uses magnetic fields to stimulate nerve cells in the brain. It’s often used to treat depression, especially when other treatments like medication or therapy haven’t worked well.

The treatment is performed using a Magstim figure-8 coil, which is positioned flush against your head. The coil delivers localized magnetic pulses to the left dorsolateral prefrontal cortex, the region of the brain responsible for mood regulation.The process is painless and depending on the protocol, usually takes about 15 - 30 minutes per session.

TMS has been shown to help many people improve their mood and reduce symptoms of depression. It’s also being studied for other conditions including anxiety, PTSD, and chronic pain. As research continues to evolve, TMS represents a frontier in the treatment of various psychological and neurological disorders. Its potential applications extend beyond mood disorders, making it a valuable area of study for enhancing mental health and overall well-being. With ongoing clinical trials and advancements in technology, TMS may soon become an integral component of comprehensive treatment plans for a diverse range of conditions.

What Is Theta Burst Stimulation?

Theta Burst Stimulation is a newer form of TMS. It uses bursts of magnetic pulses delivered in a specific pattern that mimics the brain’s natural rhythms. The name “theta” comes from the frequency of these bursts, which is similar to the brain’s theta waves.

There are two main types of TBS:

• Intermittent Theta Burst Stimulation (iTBS): This type delivers bursts in short bursts with breaks in between. It tends to increase brain activity in the targeted area, and is currently FDA-approved for the treatment of Major Depressive Disorder.

• Continuous Theta Burst Stimulation (cTBS): This type delivers bursts continuously without breaks. It usually decreases brain activity in the targeted area. It is commonly used in therapeutic protocols for anxiety management.

  
  

Both types can be used depending on the treatment goal. For example, iTBS might be used to stimulate underactive brain regions, while cTBS might calm overactive areas.

How Does Theta Burst Stimulation Work?

TBS works by sending rapid bursts of magnetic pulses to the brain. These bursts are grouped in triplets and repeated at a frequency of 5 Hz, which matches the brain’s natural theta rhythm. This pattern helps the brain cells communicate more effectively and can change how brain circuits function.

Because TBS mimics natural brain activity, it can produce stronger and longer-lasting effects than traditional TMS. It also allows for shorter treatment sessions, often just a few minutes, compared to the longer sessions needed for standard TMS.

Benefits of Theta Burst Stimulation

There are several reasons why TBS is becoming popular in mental health treatment:

• Shorter sessions: TBS treatments can last about 3 to 10 minutes, making it easier to fit into your day.

• Effective results: Research shows TBS can be as effective as traditional TMS for depression and other conditions.

• Comfort: The shorter treatment time can make the experience more comfortable and less tiring.

• Flexibility: Both iTBS and cTBS can be used to target different brain areas and conditions.

Who Can Benefit from Theta Burst Stimulation?

TBS is mainly used for people with depression that hasn’t improved with other treatments. It may also help with:

• Anxiety disorders

• Post-traumatic stress disorder (PTSD)

• Certain types of chronic pain

• Other mood-related conditions

  
  

Because TBS is still relatively new, ongoing research is exploring its full potential. If you’re interested, we can discuss whether it might be a good fit for your situation during our free TMS consultation.

Comparing Traditional TMS and Theta Burst Stimulation

Both treatments use magnetic stimulation but differ in how the pulses are delivered. TBS offers a faster, often more efficient option without sacrificing effectiveness. Here's a quick look at how traditional rTMS and iTBS for Major Depressive Disorder compare:

Feature	Traditional rTMS	Intermittent Theta Burst Stimulation (iTBS)
Session Length	19 - 37 minutes	3 1/2 minutes
Pulse Pattern	Steady stream of high-frequency repetitive pulses (e.g., 10Hz or 18Hz)	3 pulses at 50Hz, repeated 5 times per second (5Hz), with 2-second stimulation 'on' and 8 - second 'off' intervals.
Brain Rhythm Mimicry	No. Delivers a static, repetitive frequency.	Yes. Mimics the brain's natural internal theta rhythm (4 - 8Hz), which is critical for learning and memory processes.
Treatment Effect Speed	Symptoms generally improve gradually over a full course (4 - 6 weeks).	Potential for faster relief. Due to greater efficiency at increasing brain excitability, patients may experience symptom reduction sooner.
Standard Course (Total Sessions)	36 sessions (usually 5 days a week for 6 - 8 weeks).	Similar course structure. However, the short session length allows for accelerated protocols (multiple sessions per day) to compress total treatment weeks.
Clinical Effectiveness	FDA-cleared and highly effective for Treatment-Resistant Depression.	Equally effective (statistically non-inferior) to traditional high-frequency rTMS, with comparable remission and response rates.
Mechanism of Action	Facilitates normalization of neural circuits by stimulating neurons via high-frequency repetition to increase cortical excitability.	Mimics natural biological mechanisms (theta rhythm) to induce robust, lasting Long-Term Potentiation (LTP)-like effects with fewer total pulses, making it a more biologically efficient approach.
Comfort & Tolerability	Generally milder sensation. Described as gentle tapping, though minor scalp discomfort or brief headaches are common side effects. Patients often find it easier to tolerate.	More intense. Described as a brief, tapping sensation, sometimes sharper initially. Because the sensation is very short (3 minutes), most patients tolerate it well and acclimate quickly.
Cost & Efficiency	Often established with broad insurance coverage. Costs per session are standard, but require a significant daily time commitment.	Time-efficient. Designed for maximum efficiency, making it easier to fit into busy daily schedules. Due to time-savings, it is considered cost-effective for clinics.
FDA Clearance for Depression	2008	2018

Why Choose NeuVista Mental Health for Your TBS Treatment?

We understand that choosing a treatment can feel overwhelming. At NeuVista Mental Health, we focus on providing clear information and compassionate care. Our use of the Magstim Horizon machine means you get access to the latest technology for TMS.

In addition to traditional TMS, we offer both iTBS and cTBS so your treatment can be customized. Our team works closely with you to monitor progress and adjust as needed. We want you to feel supported every step of the way.

If you want to learn more about our TMS services or schedule a consultation, give us a call at (910)239-0300 or visit our Transcranial Magnetic Stimulation page.

Theta Burst Stimulation is a powerful option in mental health care. It offers shorter sessions and effective results by working with your brain’s natural rhythms. At NeuVista Mental Health, we provide both iTBS and cTBS using the Magstim Horizon machine, ensuring you have access to this advanced treatment in Wilmington, NC.

If you’re exploring new ways to manage treatment resistant depression, anxiety or OCD, consider TMS as part of your care plan. Reach out to us to discuss how this treatment might help you move toward lasting wellness.