History Main / TraumaInducedAmnesia

* In ''FullMetalAlchemist'', this is the reason why Al can't remember the Doors of Truth.

** Used in ''MacrossPlus'', [[spoiler:though in this case, the traumatizer has the amnesia, as Guld was shocked by his assault on the woman he loved. He kept enough of the memory to falsely blame Isamu for the event, only to have it all crash back on him when he thought he had succeeded in killing Isamu. Then, RedemptionEqualsDeath is the only way to go.]]

* Suzaku from ''CodeGeass'' [[spoiler:killed his father in a fit of childish rage, during a discussion about the fate of their country - Genbu wanted to fight Britannia to death, Suzaku disagreed]]; the trauma from the realization of what had happened caused him to develop amnesia about it. After [[spoiler:C.C. [[MindRape invades his mind]] to save Lelouch from him]], he gets the memories back and is so shaken that he goes into an HeroicBSOD. [[spoiler: And Mao uses this to mind rape him ''again''.]]

* [[spoiler:Onisarashi-hen]] arc of ''HigurashiNoNakuKoroNi''. Actually, the manga version of Onikakushi-hen has this too. That is, until Keiichi notices [[http://www.onemanga.com/Higurashi_no_Naku_Koro_ni_-_Onikakushi/7/47-48/ his room...]]

* [[{{Naruto}} Sasuke Uchiha]] forgot two things after the massacre. One is that he [[spoiler: activated his Sharingan for the first time and chased Itachi]]. The second is that [[spoiler: Itachi was [[TearJerker crying]] before he left Sasuke]]. He doesn't remember either event until Itachi's [[spoiler: death]].

* Usagi aka SailorMoon does this in the ''Sailor Stars'' manga, after [[spoiler: Sailor Galaxia kills Mamoru in front of her.]] She's so traumatised that she blocks the incident out of her mind. Boy, does it hurt when she remembers.

* Happens to [[spoiler: Ran Mouri]] in one of the DetectiveConan {{Non serial movie}}s, ''Captured in her Eyes'', after [[spoiler: she not only catches a clear view of the murderer, but is almost killed by him and the local ActionGirl Satou [[TakingTheBullet takes the bullet for her]].]]

* In ElfenLied, a major part of the plot is driven by Kouta's amnesia about his childhood. It affects his relationship with Yuka, is the basis for his protectiveness of Nyu, Mayu, Nana, and Nozomi, and was caused by [[spoiler: Nyu/Lucy killing his father and sister when they were children.]] Knowing that only this amnesia enables their relationship, at one point Lucy is willing to try and [[spoiler: kill Mayu, whose memories of Lucy's attack on Nana return as well.]]

* Yuuichi from ''{{Kanon}}'' forgot nearly everything about the town where Nayuki lived in because [[spoiler:he witnessed Ayu fall off a tree and she was paralyzed as a result]]. This drives the plot, by the way.

* [[{{Naruto}} Sasuke Uchiha]] forgot two things after the massacre. One is that he [[spoiler: activated his Sharingan for the first time and chased Itachi]]. The second is that [[spoiler: Itachi was [[{{TearJerker}} crying]] before he left Sasuke]]. He doesn't remember either event until Itachi's [[spoiler: death]].

* Usagi aka SailorMoon does this in the Sailor Stars manga, after [[spoiler: Sailor Galaxia kills Mamoru in front of her.]] She's so traumatised that she blocks the incident out of her mind. Boy, does it hurt when she remembers.

* Nina Fortner/[[spoiler: Anna Liebert]] has forgotten most of the memories of her {{Trauma Conga Line}} childhood when she is introduced in {{Monster}}.

* In FullMetalAlchemist, this is the reason why Al can't remember the Doors of Truth.

* TheLongKissGoodnight is based on this trope: The main charcter lives a normal life as a small town schoolteacher and mother of a young girl. However, she don't have any memories prior to waking up on a beach seven years ago. After a car accident, she discovers that for some unknown reason she's [[KnifeNut VERY]] good with knifes. And step by step, her old life is starting to [[AmnesiacDissonance come back]].

* In the [[CalLeandros Cal Leandros]] series, Cal was kidnapped by the Auphe when he was fourteen and dragged through a portal to their home world/dimension/whatever. When he escaped, he had no memory of what went on during those two years. [[spoiler:Darkling mentioned that it involved torture and learning how to open portals in preparation for the Auphes' plan to destroy humanity.]]

* While we've never seen the cause, the Duck Man from {{Discworld}} may suffer from this. His occasional, [[WistfulAmnesia vague musings]] about life before he became a beggar suggest that something quite nasty happened in his past.

* The Machinist

* Played for comedy, in {{Dinosaurs}} Earl and Fran suffered so much from their experiences with their two oldest kids while they are two, that they had blocked out the entire year.
* In an episode of TheTwilightZone a woman [[spoiler: has repressed memories of, as a child, being burned and witnessing a criminal killing her mother - When she gains her memories back, she realizes that a male visitor is the criminal and that he is trying to kill her ]]

Sometimes, when somebody goes through a severe, emotionally traumatic experience or suffers a physical head injury, their brain removes the memory of that event; this causes Trauma Induced Amnesia. These memories can be often recovered over time through therapy, magic, or whatever is appropriate in the setting, but sometimes another traumatic experience will bring them to the surface in FlashBack form. Sometimes depicted as appearing only in BadDreams, which often results in DreamingTheTruth. Sometimes the memories simply come back on their own.

* In [[LoisMcMasterBujold Lois McMaster Bujold]]'s ''Mirror Dance'' Miles Vorkosigan suffers from amnesia after [[spoiler:being killed, frozen, and then revived]].

* [[spoiler: Asuna]] of ''MahouSenseiNegima'' almost subverts this. OldMaster Gateau asks that [[StoicSpectacles Takamichi]] erase [[LaserGuidedAmnesia the select memories of his death and the supposed battle they were just in]]- and soon after, ''something'' erased all her memories, period. She cries heavily whenever she has any visions of her past, never knowing why (they're always quickly forgotten no matter how hard she tries). Whatever it is, its apperently filled with trauma (we still don't know fully).

* In FinalFantasyVII, Cloud Strife suffers a perfectly understandable case of TraumaInducedAmnesia, considering the incredible TraumaCongaLine he suffers before the game even '''''starts''''' -- he's already: (1) endured a lonely, alienated childhood; (2) been told he's too weak to become a SOLDIER; (3) watched his hero Sephiroth destroy his hometown and nearly murder both his childhood crush Tifa and his good friend Zack; (4) suffered over four years of sadistic experimentation by CompleteMonster Hojo; and finally (5) is forced to helplessly watch Zack die in a gutwrenching heroic last stand to protect him.

** Also a case of not-entirely-TruthInTelevision. Not to be cruel to actual victims of child molestation, but due to the impressionable nature of children, it's entirely possible to ''[[InvertedTrope convince]]'' [[InvertedTrope them that an event happened that never actually transpired]] if you tell them over and over again that it occured. Because actual repression is ''very'' rare, a number of child molestation cases have resulted in wrongful imprisonment - as a result, certain lines of questioning, such as the doll method ("Show us where he touched you"), are considered highly suspect by psychologists.
*** Actually, the doll method has been shown to have an extremely low false positive rate, despite widespread criticism. In fact, this troper suspects much of the criticism of various methods of ascertaining abuse is motivated by abusers wanting to get off or other people unwilling to believe unpleasant truths, rather than actual inaccuracy.
*** This is simply not true, while abuse surely does occur the fact is that many cases have been effectively created out of scant evidence by basically planting the idea in the minds of the "victims". The daycare abuse "crisis" in the 80s and early 90s is an example in which multiple people were tried and some sent to prison in a series of cases that on review were flimsly beyond reason. The reasoning used to get these wrongful convictions was basically what you just said, they ignored the myriad glaring problems with the methods used to gain the testimony and simply assumed that anyone that would speak against it was paid off or on the side of the "abusers". It's very easy to try and rationalize it away as "abusers trying to get away with it", but ignoring the fact that these are impressionable children that can in many cases be rather easily talked into saying almost anything by either overeager or disreputable officials or guardians is fool hardy at best when the cost of being wrong is the ''complete destruction of an innocent persons life''.
**** WeHaveReserves.

*This happens at least twice in ''MASH'' with Hawkeye. In one episode, he incorrectly remembers a friend of his pulling him out of a lake to save him from drowning. Hawkeye had suppressed the memory that his friend had actually [[spoiler: been trying to drown him]] before he saved him. In the final episode, Hawkeye had another problem with recalling his memories when [[spoiler: Hawkeye remembers that he had inadvertently contributed to the death of a baby on a bus in enemy territory.]]