Possibly has placebo effect. I know someone who did EMDR and said it helped them a lot.
> because the underlying theory and primary therapeutic mechanism are unfalsifiable and non-scientific
Underlying theory doesn't matter much. Remember that we don't even know the mechanism of action of acetaminophen.
EMDR has been characterized as pseudoscience, because the underlying theory and primary therapeutic mechanism are unfalsifiable and non-scientific. EMDR's founder and other practitioners have used untestable hypotheses to explain studies which show no effect.[55] The results of the therapy are non-specific, especially if directed eye movements are irrelevant to the results. When these movements are removed, what remains is a broadly therapeutic interaction and deceptive marketing.[52][56] According to neurologist Steven Novella: