This is hardly a citation. This is a personal blog of someone, who on his about page says nothing of himself, he obviously has no scientific training and he admits to working in some undisclosed capacity in alternative medicine.
As I said, references are included in the article. References to scientific papers. Some are embedded in the original text, many more are included in the ETAs at the bottom. It was the most citations to the scientific literature on placebo in a single place that I could find with a simple google search.
The paranormal field is firstly hard to research precisely because a person can be influence through thought and not even realize it.
That is no more true for the paranormal than it is for anything else, if by "influenced through thought" you mean influenced by the human brain's built in cognitive biases. That's why the scientific method was invented: to carefully and methodically eliminate the effect of those biases. When that is done for supposedly paranormal phenomena they disappear, proving that the perception that they exist is an artefact of those biases.
Secondly the great bulk of the studies that are done are double blinded. When the effect is most prominent and most people (99.99%) only through relationship, then the very condition that is required, is removed from the experimental procedure. That is like doing a drug trial without the drug!
The studies are double blinded to remove all known sources of error. If the result is negative then one of those sources of error was the cause of the perception that there was some pattern or correlation worthy of investigation, ie that pattern or correlation does not, after all, exist.
But even with all this there is enough evidence that the paranormal is real.
I have yet to see any that stands up to scrutiny.
My findings will be confirmed by ordinary people looking for answer after having been failed by modern medicine, like I was.
Your hypothesis can only be confirmed by a scientific investigation which eliminates known sources of error. No amount of additional anecdotal evidence will do it.
All your anecdotal evidence is of the form "I had problem A, I did B, problem A went away, therefore doing B makes problem A go away". This is a form of faulty reasoning so common it has a name: the
post hoc ergo propter hoc logical fallacy. My "I had a headache, I whistled for a while, my headache went away, therefore whistling makes headaches goes away" example is another example of this logical fallacy. Note that so is "I had a headache, I took an aspirin, my headache went away, therefore taking aspirin makes headaches goes away". The only way we know that the latter is actually correct is that we did double blind clinical trials which were positive. Until then there was no more justification for making such a statement than there is for my whistling claim, or for your claims.