10-12-23: Hyperthymesia Hyperthymesia - Wikipediaen.m.wikipedia.orgAmerican neurobiologists Elizabeth Parker, Larry Cahill, and James McGaugh (2006) identified two defining characteristics of hyperthymesia: spending an excessive amount of time thinking about one's past, and displaying an extraordinary ability to recall specific events from one's past.[1] The authors wrote that they derived the word from Ancient Greek: hyper- ("excessive") and thymesis ("remembering"), but there is no such word as thymesis; it may allude to the Greek enthymesis, which means "consideration", and is derived from thymos "mind".[6]