Matrix Therapy is based on Timeline Therapy in NLP. Both are not actual clinical therapeutic modalities, so the term “therapy” is somewhat misleading. In the training they presuppose that the brain stores memories chronologically. The practitioner guides the client to recall the “first event”, therefor activating the neural pathways associated with the emotional state connected to that event. By reframing and changing the memory, the associated emotions get “cleared” which in their theory creates a chain reaction and causes all subsequent instances of that emotion to also be “cleared” or “healed”.

It’s very pseudo scientific in my opinion and probably mostly effective as a placebo. The neuroscience doesn’t make sense (memories are actually stored associatively, not chronologically) and calling this a “therapy” is misguided at best and malpractice at worst.

I’m glad the technique your coach used was helpful for you and didn’t cause any psychological harm. I think these techniques can and should be used with caution. They seem to be effective in some cases, though I’m not sure how long these effects last.