Cort has blogged about this trial:
The Big Long COVID Neuroplasticity Trial: Did it Work?
As we've frequently noted, the model is incoherent.
Let's leave aside the development of post-infection syndromes that follow
asymptomatic acute infections, ie there is never any initiating sickness behaviour to kick things off.
"Sickness behaviour" including fatigue and flu-like symptoms, is emphasised as
entirely driven by the brain. This is framed as self- and community-preserving, with implied evolutionary development.
Then the infection is cleared and the brain now predicts all good: "I’m going to enjoy myself on a walk". But symptoms occur instead (fatigue, pain). Remember, we've established that the brain alone is responsible for producing these symptoms.
The brain is surprised by this turn of events (that it has caused) and sends out unconscious alarms (fight or flight), which causes more of these symptoms.
The brain is locked into this alarm / threat state, but this can be treated by neuroplasticity / brain retraining, teaching the brain that it is safe.
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So, to summarise the summary: the brain predicts everything is fine, but then says it isn't, despite this prediction. It sends out alarms which presumably means that it is absolutely no longer predicting that everything is fine. But despite at the same time predicting everything is great and everything is really terrible, gets locked in to some diagram with circular arrows, that does... stuff. But we can train you out of it, you just have to believe.