Memory distortion and reality

[Daniel Schacter] divides the “sins” into the following categories: transience, absent-mindedness, blocking, misattribution, suggestibility, bias, and persistence. The “sins” of transience, absent-mindedness, and blocking are memory malfunctions that fall in to the class of omission—failure to bring to mind a desired fact, event, or idea. The remaining sins represent malfunctions in which some form of memory is present, but is either incorrect or unwanted.