▁before . ▁Jam ais ▁vu ▁is ▁sometimes ▁associated ▁with ▁certain ▁types ▁of ▁a phas ia , ▁am nes ia , ▁and ▁ep ile ps y . ▁ ▁Jam ais ▁vu ▁is ▁most ▁commonly ▁experienced ▁when ▁a ▁person ▁moment arily ▁does ▁not ▁recogn ise ▁a ▁word ▁or , ▁less ▁commonly , ▁a ▁person ▁or ▁place , ▁that ▁they ▁know . ▁This ▁can ▁be ▁achieved ▁by ▁anyone ▁by ▁repeatedly ▁writing ▁or ▁saying ▁a ▁specific ▁word ▁out ▁loud . ▁After ▁a ▁few ▁seconds ▁one ▁will ▁often , ▁despite ▁knowing ▁that ▁it ▁is ▁a ▁real ▁word , ▁feel ▁as ▁if ▁" there ' s ▁no ▁way ▁it ▁is ▁an ▁actual ▁word ". ▁ ▁The ▁phenomen on ▁is ▁often ▁grouped ▁with ▁déjà ▁vu ▁and ▁pres que ▁vu ▁( tip ▁of ▁the ▁tongue , ▁literally ▁" al most ▁seen "). ▁ ▁The oret ically , ▁a ▁jamais ▁vu ▁feeling ▁in ▁a ▁suffer er ▁of ▁a ▁del iri ous ▁dis order ▁or ▁into xic ation ▁could ▁result ▁in ▁a ▁del iri ous ▁explanation ▁of ▁it , ▁such ▁as ▁in ▁Cap gr as ▁del usion , ▁in ▁which ▁the ▁patient ▁takes ▁a ▁person ▁they ▁know ▁for ▁a ▁false ▁double ▁or ▁imp ost or . ▁If ▁the ▁imp ost or ▁is ▁the ▁suffer er ▁themselves , ▁the ▁clin ical ▁setting ▁would ▁be ▁the ▁same ▁as ▁the ▁one ▁described ▁as ▁dep erson al isation ; ▁hence , ▁jamais ▁v us ▁of ▁ones elf , ▁or ▁of ▁the ▁very ▁" re ality ▁of ▁reality ", ▁are ▁term ed ▁dep erson al ization ▁and ▁dere