<Li> Selection bias where people remember the "hits" and forget the "misses", remember coincidences more often than other non-coincidences, or when they were correct about a future event rather than instances when they were wrong . Examples include thinking of a specific person before that person calls on the phone . Human memory, it is argued, has a tendency to record instances when the guess was correct, and to dismiss instances when the guess was incorrect . </Li> <Li> Unconscious perception by which people unconsciously infer, from data they have unconsciously learned, that a certain event will probably happen in a certain context . As with cryptomnesia, when the event occurs, the former knowledge appears to have been acquired without the aid of recognized channels of information . </Li> <Li> Self - fulfilling prophecy and Unconscious enactment in which people bring events that they have precognized to pass, but without their conscious knowledge . </Li> <P> Some psychologists have explained the apparent prevalence of precognitive dreams in terms of memory biases, namely a selective memory for accurate predictions and distorted memory so that dreams are retrospectively fitted onto subsequent events . In one experiment, subjects were asked to write down their dreams in a diary . This prevented the selective memory effect, and the dreams no longer seemed accurate about the future . Another experiment gave subjects a fake diary of a student with apparently precognitive dreams . This diary described events from the person's life, as well as some predictive dreams and some non-predictive dreams . When subjects were asked to recall the dreams they had read, they remembered more of the successful predictions than unsuccessful ones . </P>

How to have a dream about the future