[sn41]

There seems to be an article on confabulations - seems to be a concept from neuroscience. From the abstract of the article:

"Confabulations are inaccurate or false narratives purporting to convey information about world or self. It is the received view that they are uttered by subjects intent on ‘covering up’ for a putative memory deficit."

It seems that there is a clear memory deficit about the incident, so the subject "makes stuff up", knowingly or unknowingly.

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cited from:

German E. Berrios, "Confabulations: A Conceptual History", Journal of the History of the Neurosciences, Volume 7, 1998 - Issue 3

https://www.tandfonline.com/doi/abs/10.1076/jhin.7.3.225.185...

DOI: 10.1076/jhin.7.3.225.1855