Are you looking for physical therapy solutions in the field of neuromodulation? Two non-invasive technologies, repetitive transcranial magnetic stimulation (RTMS) and transcranial near-infrared light stimulation (PBM), have likely already come to your attention. Both utilize physical energy to modulate brain function, but differ in their mechanisms, application scenarios, and advantages. By reviewing key literature and the latest clinical data, the following article systematically explains the similarities, differences, and respective advantages of the two, from principles to applications, to facilitate your choice.
1. Core Mechanism Differences: Electromagnetic Induction vs. Photobiomodulation
1). RTMS (Repetitive Transcranial Magnetic Stimulation)
Principle: Based on the Faraday principle of electromagnetic induction, a high-intensity pulsed magnetic field (≥1.0 T) is generated by a coil. This field penetrates the skull, inducing currents in neural tissue, directly altering neuronal electrical activity and synaptic transmission.
Modulation Methods:
High-frequency stimulation (>1 Hz): Increases cortical excitability and is suitable for depression and motor rehabilitation.
Low-frequency stimulation (≤1 Hz): Suppresses cortical activity and is used for epilepsy, mania, and other conditions.
Burst-type stimulation (TBS): Such as iTBS (excitatory) and cTBS (inhibitory), it is more effective and reduces treatment time by 80%.
2). PBM (transcranial near-infrared light stimulation)
Principle: Near-infrared light of a specific wavelength (commonly 810nm-1070nm) penetrates the skull and is absorbed by cytochrome C oxidase in the mitochondria, promoting ATP energy synthesis, improving cellular metabolism, inhibiting inflammatory factors, and reducing oxidative stress.
2. Comparison of Technical Parameters and Operational Features
| Stimulation Type | Pulsed Magnetic Field (0.1–100 Hz) | Near-Infrared Laser (660–1070 nm) |
| Penetration Depth | Deep (can reach subcortical areas) | Shallow (primarily affects the cortex) |
| Targeting Accuracy | High (can target specific brain areas such as the motor cortex) | Moderate (depends on wavelength and irradiation area) |
| Treatment Time | 10–30 minutes/session | 10–15 minutes/session |
| Operation Requirements | Requires a qualified physician | No professional expertise required; can be performed at home. |
| Contraindications | Intracranial metal implants, history of epilepsy | No absolute contraindications (safer). |
3 . Clinical Applications and Efficacy Advantages
1) Core Advantage of RTMS: Direct Modulation of Neural Activity
Psychiatric Disorders:
Depression (especially refractory): 30–50% remission rate, FDA-approved.
Obsessive-compulsive disorder and schizophrenia: Strong evidence for adjunctive therapy. Neurorehabilitation:
Post-stroke motor/language impairments: Function is restored through balanced interhemispheric inhibition (e.g., high-frequency stimulation of the affected side or low-frequency inhibition of the unaffected side).
Parkinson's disease: iTBS improves bradykinesia, with an effect size of r=0.371.
Precision: Combined with the Personalized Brain Functional Segmentation (pBFS) technique, it can localize 213 brain regions, improving treatment efficacy (e.g., a 93.3% response rate for post-stroke aphasia).
2) PBM's core advantages: Cellular metabolism and anti-inflammatory repair
Cognitive enhancement:
Working memory improvement: 810-1070nm near-infrared light stimulation of the right prefrontal cortex results in enhanced EEG activity as measured by ERP.
Alzheimer's disease: Promotes synaptic growth and improves cognitive decline.
Neuroprotection and anti-inflammatory:
Inhibits proinflammatory cytokines and reduces oxidative damage, making it suitable for controlling inflammation after brain injury.
Non-invasive and painless, it is suitable for long-term intervention (e.g., home devices).
Cost-effectiveness: No need for specialized hospital visits, reducing time and financial costs.
Why choose the suyzeko PBM helmet?
1. Precise LED wavelength output. We use chips imported from Taiwan, ensuring an LED wavelength accuracy of ±3nm. This wavelength stability can be verified using a professional oscilloscope.
2. Effective power output. We utilize a foldable, oil-based circuit board and an external controller. With a 5V/6A power supply input, the rated power reaches 30W, reducing controller power requirements and delivering 370% more power than similar products.
3. Powerful control system. Our touchscreen controller, independent of the helmet's power supply, allows for frequency adjustment from 1-20,000 Hz and allows for targeted control of different brain regions, enabling more precise radiation therapy.
4. We have a mature design and R&D team and offer OEM/ODM services. We can design and develop UI presets and other features tailored to your needs. Upon receiving your idea, we can evaluate and provide a solution within a day!