[yetanother12345]

> These anecdotes have as much credibility as alien abductions, remote viewing, out of body experiences or other self-reported paranormal experiences...

Those types of experiences are not the type of behaviour that is on topic here. Also, depending on perspective what you wrote may well be perceived as derogatory.

People suffering[0] from some degree of savant syndrome generally can display "non-normal" behaviour which is

1) observable, and

2) repeatable

[0] Yes, suffering. To quote the article

      Injury, disease, or disability essentially “unlocks” the brain, leading a particular region to explode in functioning and flourishing.

... but also in the sense of many having difficulties living among "the normies" which are the rest of us