1319 Punahou Street #1000 Honolulu, HI 96826
Synapse Hawai’i Making Connections In and Out of the Brain. Let us connect with you!
Key points of MeRT: FDA cleared, Non-invasive, Non-pharmaceutical, Outpatient, Painless, Individualized care
Key points of MeRT: FDA cleared, Non-invasive, Non-pharmaceutical, Outpatient, Painless, Individualized care

Synapse is Hawai’i’s first and only brain treatment center offering Magnetic EEG-Guided Resonance Therapy. Grounded in neuroscience and delivered with aloha spirit, MeRT treats the symptoms and behaviors of neurological and mental health conditions affected by brainwave dysfunction. Using sophisticated brain imaging to identify patterns of brainwave dysfunction and applying gentle magnetic waves to targeted areas of the brain, MeRT safely optimizes brainwave patterns, which can reduce clinical symptoms and behaviors.

About Mert
Over 10 years of treating children and adults
Areas We Can Help
Over 1000 satisfied patients
Our Process

Begin with a consultation with our clinician and have your qEEG taken, analyzed, and interpreted. These steps will help determine if MeRT is a good fit for you.


A personalized treatment protocol is developed based on your qEEG. Per your protocol, gentle magnetic waves are applied to targeted areas of your brain in our office by one of our technicians. Each treatment period is 2 weeks (Monday-Friday).

Progress Monitor & Evaluate

Every 2 weeks, surveys and scales are collected to help us monitor your clinical response to treatment. Near the end of each treatment period, a follow up qEEG and clinician consultation is done to evaluate your progress and guide additional treatment.

A Little

Patient Aloha

Synapse Parent of a Child with Autism Spectrum Disorder

Frankly speaking, we did not anticipate a dramatic miracle from the treatment coming to Hawaii. The most valuable lesson we have learned through this treatment was that we now understand the reasons behind my son’s behaviorism. We understand better why he acts in certain ways. We also realized a little more about the directions we should consider and approach in order to find solutions. Conclusively, the best treatment result we experienced was we noticed much better eye contact.  My son responded much more naturally when his name is called. We saw curious eye contact rather than discipline/trained eye contact.”

Synapse parent

Are you having issues with your child getting into trouble at school?  Or do school administrators ask you if you’ve had an assessment of your child?  Let me tell you, Dr. Yim and his staff saved our family!  If we didn’t stumble on Synapse, we would still be receiving daily behavior updates, with no clue what to do. Going through the therapy has been a game changer!  Rather than having to call my son 10 times before I get a response, he now answers by the first time.  This has truly been life changing and a blessing.  Thank you Dr. Yim, Audrey, Hope, Mel, and Shirley!  You guys are miracle workers!!  Thanks!

Chris Cole
Afghanistan Combat Veteran
Former Defense Intelligence Official

After just about every conventional treatment failed to reduce my PTSD symptoms, Magnetic e-Resonance Therapy at Synapse Hawai’i proved to be totally transformative for me. It significantly reduced my anxiety & depression, greatly improved the quality of my sleep, and had a lasting positive impact on my mood — truly remarkable considering it’s non-invasive, painless and does not involve the use of any pharmaceuticals. Dr. Yim patiently guided me through the science and helped me at every stage to optimize the treatment protocols for my specific condition and symptoms, while the MeRT technicians were always gentle, supportive & knowledgeable. I cannot recommend MeRT at Synapse Hawai’i enough for anyone who, like me, has struggled with treatment-resistant PTSD. Mahalo, Synapse Hawaii!

So Young
Mother of a child with ASD

In the early phase of treatment, even though he slept, he didn’t sleep very deeply (didn’t sleep 9-10 hours deeply). After we came to Synapse, he started sleeping 9, 10, and even 11 hours a night. After he stopped taking his medications, he didn’t experience any side effects even though he did have side effects due to the medications. If it wasn’t for this treatment with Synapse, I don’t think this would’ve been possible. The way he speaks even changed after starting treatment. He puts more emphasis and emotion into the way he speaks rather than being monotone. He can even multi-task in a way where I talk to my child and he is something else at the same time after the treatment. This wasn’t possible before. He is able to be more playful with children his own age and be more involved in his group compared to before. Before, he wasn’t able to understand when a certain thing is appropriate to do at a certain time. For example, he really wanted to do something at this moment but couldn’t comprehend why he couldn’t, even though it was inappropriate to do so at that time. This issue has been overcome. Before, he didn’t want any material items but now he emphasizes more than he really wants something. The biggest thing I have noticed is my child’s ability to generate more emotion with everything. As for eating, he has become more open to eating compared to before. Before, he used to cause a fit when trying to be fed by me. Now, he is enjoying eating food by himself. His favorite food is ketchup! I never imagined him to change this much. I question myself if my child needs to keep continuing this treatment at Synapse Hawai’i. I recommend other people to consider this treatment because I never imagined how much it would improve my son’s life and how effective it would be. Doing this treatment was a last option for my child and it seemed to have worked to a great extent!

Annie R.

As a mother of an autistic non-verbal, six-year-old daughter, we went into MeRT not expecting much change. Dr. Gregory Yim and staff has exceeded my expectations with the MeRT. After our 6-week treatment with Hope and her kind patient ways with my daughter, we came out with more positive than could be imagined. My daughter has become more focused in school and at home. For the first time, she actually called her dad, ‘Dad,’ with she never said before. Her aggression has dramatically decreased. I’d always be bruised from her pinching, biting, and scratching but it has altogether stopped. Mahalo Nut loa Dr. Yim and Staff!

Mother with a child with autism from Korea
Traveled from Korea for MeRT

This summer our child was treated at the Hawaii branch. There were many worries and difficulties, but I think it was a good thing to do. In terms of interaction, there are more and more areas where you can see positive changes. And after returning to Korea, you can sometimes see new expressions. There are still many problems to overcome, but I feel much more comfortable compared to before treatment. Even the slightest changes mean a lot to children and their families, so I recommend that you receive them with a little more relaxed mind rather than expectations that may be too grand. Thanks again to therapist kyanna for always being kind and giving us the best despite our lack of communication 🙂

Sister of a sibling with autism
Travelled from Korea for MeRT

We did MeRT at the Hawaii center with my brother who has autism. It was not much easy to try this treatment in another country but I think it’s worth it. There are some positive changes with his interaction and more new benefits have occurred even after coming back to Korea. We still have many other problems to go through but he looks more calm and comfortable compared to before. Thanks a lot again for Dr. Yim and Kyanna technician who gave us all her best and for always being nice even we have language barrier 🙂


The Brain Treatment Center is truly a special place filled with incredibly kind people, who all share the same goal of helping improve the lives of every patient. We have witnessed positive changes and miraculous recoveries from friends and family with anxiety and autism.  Treatment is non-invasive, scientifically sound, and just plain easy.  Highly recommend!


This place is amazing.  The people are wonderful.  As a mother of a 31 year old autistic son, this place has given me hope. My son is doing much better and we are excited about our future. Seeing changes in him that I only dreamed of. The staff is incredible.  Thank you so much!

Frank P.

I have a (6) year old son who has autism and the Brain Treatment Center has helped him tremendously.

He has improved specifically in his auditory processing and speech along with a reduction in his toe walking. He attends a special school and receives Speech, OT, PT and ABA therapies. ALL his teachers including the speech therapist have said he has improved dramatically during the (4) weeks of therapy he had while attending. We have worked with our son since he was diagnosed at (16) months old, he has received Early Intervention and then attended special schooling receiving one on one attention using ABA and OT, Pt and speech. He improved in attention and following directions and social interactions and pretend play etc. but his toe walking and speech were still a problem with major delays in speech and severe toe walking no matter what we tried.

I strongly believe that our son was ready for the MeRT treatment because he was prepared by having his body chemically balanced and healthy. Then after applying the treatment he made huge gains in his ability to communicate and huge reduction in toe walking. We feel he would benefit even more with additional treatments and we’re looking to arrange for them now.


Our little son has great results. Everytime time we did MeRT we had new improvements on his attentional deficit. In his case at first his brain connection was affected to do with speaking motor (TEL). That was his first local diagnosis. We did 4 sessions of 5/6 weeks and every time we noticed differences, every MeRT session enabled my son to get more of the outside world. At 4.5yrs he didn’t speak at all, now at 5.5yrs he is speaking and counting to 30. We hope we can continue with more sessions in the near future because his attentional deficit is much better and noticeable.


This is by far the best thing we’ve done for our son. We have been here two weeks and he loves it. The staff is amazing, so patient with my son. He has been so good after his first day, it was a turn around. His anxiety levels have dropped now. He is confident and open to change. Thank you brain treatment center. I recommend it to all the families that have kids with autism. Worth every penny.


My son had vaccine poisoning and got brain damage due to neurotoxicity. He became very violent, nonverbal, and had severe autistic behaviors, he was so violent that he gave 4 stitches on my lip and nerve damage on my left eye because of his violent behaviors. I couldn’t be alone with my son and couldn’t hug or touch him, it broke my heart. My husband and I brought my son to the Brain Treatment Center. Within one week of the treatment my son was more calm and I got to hug him for the first time in 2 yrs. My son did 6 weeks of treatment and he received another 4 weeks of treatment. My son is much calmer and started playing ping, shooting basketball, kicking the soccer ball, exercising, started volunteering at different programs, catching the city bus with his para workers and started talking!!! I love the Brain Treatment Center because they gave me back my son.

MeRT Patient

We had exhausted every available treatment hoping to help our daughter. Nothing worked — then we found Brain Treatment Center.  MeRT changed everything for us.

MeRT Patient in Hawaii

I felt like I was alone even though I was surrounded by love and care. It was just a cloud that would linger over my life every now and again. BTC helped me better understand what was going on in my head and after a month of treatment I was grateful to be depression free and medication free for the first time in my life.

Harold H.

For anyone suffering from depression, anxiety, and other symptoms, I highly recommend trying MeRT.  My adult son who has suffered from both problems his entire life, and has been on medication, realized a positive change after the first visit. We saw dramatic improvement after each visit.  This technology is truly a magic bullet for the right candidate.  The staff is professional and friendly.  The facilities are equally professional.  I would highly recommend it to anyone.

Hawaii's Brain Treatment Center
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1319 Punahou Street #1000
Honolulu, HI 96826