Funnily enough, treatments that are considered to be more invasive might be more effective, just because of the expectation that they will work. That’s probably why placebo injections are more effective than placebo pills, as Bluhm and colleagues point out. At the same time, we run the risk of overlooking potential risks associated with treatments that are considered noninvasive.
https://www.technologyreview.com/2022.../23/1065862/brain-stimulation-invasiv
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