Trauma-Induced Amnesia: Difference between revisions

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Related to [[Heroic BSOD]]. Subtrope of [[Laser-Guided Amnesia]].
 
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{{examples}}
== [[Anime]] and [[Manga]] ==
* In ''[[Macross Frontier]]'', Ranka fits this trope to a T: {{spoiler|she saw her family killed by the Vajra, and she promptly forgot all of her life up to that point}}. Furthermore, when she next meets the Vajra, she starts to have traumatic [[Flash Back]]s to the aforementioned event.
** Used in ''[[Macross Plus]]'', {{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, the friend who actually won her heart, for the event... only to have it all crash back on him when he thought he had succeeded in killing Isamu, realising that Myung and Isamu knew it all along and kept the secret to not hurt the three of them further. Then, [[Redemption Equals Death]] is the only way to go.}}
* A particularly well-done example appears in ''[[Elfen Lied]]'', in which Kohta has Trauma Induced Amnesia {{spoiler|about Lucy killing his father and sister in front of his eyes}}.
* Suzaku Kururugi from ''[[Code Geass]]'' {{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. [[Mind Rape|accidentally invades his mind]] to save Lelouch from him}}, he gets the memories back and is so shaken that he goes into an [[Heroic BSOD]]. {{spoiler|And Mao uses this to mind rape him ''again''.}}
** In the spinoff game ''Lost Colors'', the [[AFGNCAAPFeatureless Protagonist]] protagonist {{spoiler|inflicted this on himself after his Geass caused the downfall of his country and the death of his family, along with making himself [[Sealed Good in a Can]]}}.
* ''[[Neon Genesis Evangelion]]'': {{spoiler|Shinji saw his mother Yui die in EVA-01.}} He might still remember it somewhere deep down, as evidenced by brief flashes of {{spoiler|little-Shinji staring through a window at the incomplete Unit 01 (which is off-camera)}} while trapped inside his Eva after Zeruel. Though the viewpoint might suggest that he saw someone else's memories.
* {{spoiler|Onisarashi-hen}} arc of ''[[Higurashi no Naku Koro ni]]''. Actually, the manga version of Onikakushi-hen has this too. That is, until Keiichi notices his room...
* ''[[Princess Tutu]]'' did this with not one, but ''two'' characters--Ruecharacters—Rue {{spoiler|buries her memories of being Princess Kraehe and having the Raven as her father, putting on a charade for years about only being Rue and being nothing more than a normal human girl.}} Her memories are all dug up by the end of the first season. Fakir takes a little longer to remember his traumatic past: {{spoiler|He watched his parents die as they protected him from crows he had summoned using his writing powers.}}
* Casca from ''[[Berserk]]'' suffers this, along with [[Go Mad Fromfrom the Revelation|being driven completely mad]], after {{spoiler|being brutally raped by Femto during the Eclipse}}.
* Vaiya experiences this during ''[[MD Geist]]|MD Geist II: Death Force]].
* [[An Ice Person|Snow girl]] Yukime from ''[[Hell Teacher Nube]]'' loses her memories {{spoiler|after being tortured to death and then reborn}}
* Yuuichi from ''[[Kanon]]'' forgot nearly everything about the town where Nayuki lived in because {{spoiler|he witnessed, and believes he's responsible for, Ayu falling off a tree and her resulting coma}}. This drives the plot, by the way.
* ''[[Naruto|]]'': Sasuke Uchiha]] forgot two things after the massacre of his family. One is that he {{spoiler|activated his Sharingan for the first time and chased Itachi}}. The second is that {{spoiler|Itachi was [[Cry Cute|cry]][[Tear Jerker|ing]] before he left Sasuke}}. He doesn't remember either event until Itachi's {{spoiler|death}}.
* A good portion of the clients in ''[[Nightmare Inspector]]'' have been through something traumatic, thus why they're having nightmares in the first place. Unfortunately, few of them actually remember the event until near the end of the chapter.
* Usagi aka [[Sailor Moon]] 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. (In the anime, she was spared of seeing this since {{spoiler|Mamoru got [[Put on a Bus]] First, and ''then'' Galaxia [[Bus Crash|crashed it]]; she truly had no idea of what had happened, and only realized it upon seeing Mamoru's Star Seed in Galaxia's possession... right after she had killed the Inner Senshi}})
** Mamoru himself was left with amnesia after he survived a car accident that killed his parents. His amnesia is portrayed (mostly) accurately in that he spent some time in a coma before finally waking up, and when he did he could barely remember how to speak let alone anything that happened previously. He's also never fully recovered memories of the event or his younger life.
* In the Yellow arc of ''[[Pokémon Special]]'', Red's Pika suffers this after witnessing his fellow Pokemon getting blasted away and his trainer receiving a direct kick to the stomach from a ''Hitmonlee''.
* Nina Fortner/ {{spoiler|Anna Liebert}} has forgotten most of the memories of her [[Trauma Conga Line]] childhood when she is introduced in ''[[Monster (manga)|Monster]]''. {{spoiler|And when she remembers, [[Break the Cutie|the effect is devastating enough]] to get her almost [[Driven to Suicide]].}}
* Chapter 10 of ''[[Magical Girl Lyrical Nanoha|Magical Records Lyrical Nanoha Force]]'' revealed that Lily's amnesia was due to the trauma of her life as a lab experiment, which caused her memory to deteriorate as she tried to escape her grim reality by retreating into the [[Happy Place]] of her mind.
* In ''[[Fullmetal Alchemist]]'', this is the reason why Al can't remember {{spoiler|the Doors of Truth.}}
* Happens to {{spoiler|Ran Mouri}} in one of the ''[[Detective Conan]]'' [[Non-Serial Movie|Non serial movies]]s, ''Captured in her Eyes'', after {{spoiler|she not only catches a clear view of the murderer, but is almost shot to death by him and the other local [[Action Girl]] Satou [[Taking the Bullet|takes FOUR bullets for her]].}} The victim spends a good part of the movie in an [[Heroic BSOD]], barely able to take care of herself and others, and the trope is lampshaded as her doctor says she might be afraid to recover her memories due to the events that made her go amnesiac. {{spoiler|She doesn't recover until the [[Big Bad]] tries to kill both her and Conan ''in exactly the same way''; she reacts by [[Badass Boast|loudly declaring her martial arts expertise]] and curbstomping her rival.}}
** Also happens to a boy named Touma Tachihara in the fifteenth movie (''Quarter of Silence''), and the key to solve the mystery relays on him getting his memories back.
* Kai Hiwatari of ''[[Beyblade]]'' lost his memory after trying to use Black Dranzer when he was too young led to the destruction of the Abbey. It's not clear if this is due to emotional trauma, or physical trauma from debris.
* In the manhwa ''[[Totally Captivated]]'', Ewon completely forgets a rather important childhood event because of the beating that immediately preceded it, and the hypothermia that immediately followed it - unfortunately for him the violent [[Hair-Trigger Temper]] mafia boss who this was also an important event for ''does'' remember, and gets fairly pissed off that he doesn't. He eventually remembers after a period of [[Poor Communication Kills]] which finally leads to him again almost freezing to death.
* Tokiko Tsumura of ''[[Busou Renkin]]'' acquired this at the age of ten after watching a homunculus eat ''every single person in her school'' (Quite possibly including her parents, as her family never gets mentioned in the manga) alive, leaving her the only survivor (She managed to hide until she was rescued by Captain Bravo).As a result of this, she blanked out her entire life before waking up in the Alchemic Army's hospital, and never regains those memories.
* This is what happened to Ganta from ''[[Deadman Wonderland|Ganta]]'', where {{spoiler|Hagire (as part of his [[Body Surf|Body Surfing]]ing plot) hooked him onto a machine and forced him to witness himself as a child watching his child-hood friend Shiro brutally massacre a room full of science staff [http://www.mangareader.net/deadman-wonderland/47/11 when they forced her to use her blood powers on a baby lamb.] She lets the lamb live, an obvious [[Pet the Dog]] Moment... before her transformation into the monstrous Red Man, who went on a rampage and killed Ganta's school friends years later which him sent to the titular sadistic prison in the first place.}}
* Happens to Jeudi from ''[[Honoo no Alpen Rose]]'', who suffers this after being the [[Sole Survivor]] of a plane crash. The main plot of the series is about her and her boyfriend Lundi trying to make her remember who she truly is.
* [[The Woobie|Poor]] {{spoiler|Kuya}} from ''[[Utawarerumono]]'' finnalyfinally ended up with this after all the crap she went troughtthrough and practiclypractically reverted back to infancy, not even remeberingremembering how to speak and only remembereingremembering Hakuro's name. ArgublyArguably it was probably the best that could have happened to her.
 
== [[RealComic LifeBooks]] ==
 
== [[Comics]] ==
* One hypothesis about [[Wolverine]]'s lost childhood memories was that they were too painful to think about so his healing factor suppressed them.
 
== [[ComicsFan Works]] ==
 
* Danny suffers a rather extreme case in the ''[[Danny Phantom]]'' fanfic "''[http://www.fanfiction.net/s/4005132/1/Lost Lost]"'', wherein he doesn't only forget the event, he gets full-blown retrograde amnesia as a combo of head trauma, PTSD, and [[It Makes Sense in Context|creating black holes in his brain]]. He is forced to relive the trauma through real-life psychological flashbacks.
== [[Fan Fiction]] ==
* Melanie ends with this in the [[Spice Girls]]/[[Backstreet Boys]] fic, ''[https://www.wattpad.com/story/132307011-in-the-dark In The Dark]''. Not only does she revert to a child-like behavior, Melanie refuses to speaks with anyone she wasn't comfortable but recovers overtime.
* Danny suffers a rather extreme case in the ''[[Danny Phantom]]'' fanfic "[http://www.fanfiction.net/s/4005132/1/Lost Lost]", wherein he doesn't only forget the event, he gets full-blown retrograde amnesia as a combo of head trauma, PTSD, and [[It Makes Sense in Context|creating black holes in his brain]]. He is forced to relive the trauma through real-life psychological flashbacks.
* A dramatic retcon version in ''[[Equestria Chronicles]]'' occurs with Iron Hoof, during his time as Iron Claw.
 
 
== [[Film]] ==
* ''[[The Machinist]]''
* ''[[The Blind Side]]'': Michael has this; Sean mentions halfway through the movie about how "Michael's gift is his ability to forget" his [[Dark and Troubled Past]], and near the end, Michael explains how he would "close his eyes" when bad things happened.
* The cult sci-fi movie ''[[K-Pax]]'' contains one of these as part of [[The Reveal]].
* ''[[The Bourne Series]]'' (like the novels) is based around this concept. In the movies Jason Bourne {{spoiler|fails to kill his target because there are young children present (and he knows he would have to kill them too). He is then shot and left for dead.}} He awakens with no memory of who he is or that he is an assassin.
* ''[[The Long Kiss Goodnight]]'' is based on this trope: The main charctercharacter 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 [[Knife Nut|VERY''very'']] good with knifes. And step by step, her old life is starting to [[Amnesiac Dissonance|come back]].
* This is the inciting incident for the domestic drama ''[[Regarding Henry]]'', starring [[Harrison Ford]]. In it, the title character [['Tis Only a Bullet in the Brain|survives a gunshot wound to the head]], only for the resulting pinched artery to affect his memory. Cue the rest of the movie depicting him [[Quest for Identity|coming to terms]] with [[Loss of Identity|not remembering anything]] about [[Missing Time|his life before]] the [[Trauma-Induced Amnesia|shot]].
* Jeanne, the protagonist of ''[[Don't Look Back (film)|Don't Look Back]]'', is unable to remember anything about her life prior to a traumatic car crash when she was 8 years old.
 
 
== [[Literature]] ==
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* In the ''[[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.}}
* In ''[[Animorphs]]'', Rachel loses her memory after being mobbed in bald eagle morph by a group of rowdy crows and slamming into a tree.
* In "''[[See Jane Run"]]'' - a psychological thriller by Joy Fielding - the very first thing we read is how main heroine Jane Whittaker forgets who she is on her way shopping. And what the hell are those blood stains on her clothes and this large sum of money in her pocket?!
* While we've never seen the cause, the Duck Man from ''[[Discworld]]'' may suffer from this. His occasional, [[Wistful Amnesia|vague musings]] about life before he became a beggar suggest that something quite nasty happened in his past.
* Cole has this in the last episode of ''[[Tracker]]''. An imbalance in his life force containment device was triggered by having captured only one of a set of alien twins, and Cole was basically given a nasty electric shock that wiped out his memory.
* Induced deliberately in ''[[Caliban]]''. Kresh figures out who attacked Doctor Leving when he realized that it wasn't a failed murder attempt that resulted in her being unable to remember much about the evening in which it happened, but a calculated assault to make her forget what she had been doing at the time of the attack.
 
== [[Live -Action TV]] ==
 
== [[Live Action TV]] ==
* The first season of ''[[24]]'' had this happen to Teri as blatantly obvious padding. After escaping the terrorists who held them hostage, Teri tells Kim to stay in the car while she figures out where they are. Car goes over the side of the embankment and explodes, Teri collapses, and wakes up with no memory of who she is.
* Claire on ''[[Lost]]'' lost her memory of her kidnapping by Ethan and the Others, requiring hypnosis to recall some details.
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** And he does it ''[[Why Don't You Marry It?|again]]'' in the [[Expanded Universe|spinoff novels]], after he [[Shoot the Dog|destroys Gallifrey]] (the first time, not the time that the Ninth Doctor spends his tenure angsting about). Oddly, he never really gets his memory back. Both fans and a character [[What an Idiot!|who has actually been making a concerted effort to prevent him from remembering]] lost their patience eventually.
*** It [[Retcon|finally gets revealed]] that it's not trauma-induced at all; as he points out, he didn't get it when he was destroying entire ''universes''. In fact, he suffers amnesia because {{spoiler|he's storing the entire Matrix in his mind, ready to [[Reset Button|recreate Gallifrey]]}}.
** Also, in "The Next Doctor," {{spoiler|the guy who thinks he's The Doctor isn't actually a future regeneration: [[Applied Phlebotinum]] gave him some of the Doctor's memories, while personal tragedy made him forget his own.}} The Doctor refers to it as a fugue state.
* ''[[Firefly]]'s'' River Tam is implied to suffer a strong case of this from her [[Mind Rape|time]] at [[School for Scheming|the Academy]].
** [[Alternate Character Interpretation|Or]], one of the reasons she's [[The Ophelia|so]] [[Talkative Loon|screwed]] [[Ax Crazy|up]] is ''because'' she remembers [[Playing with Syringes|exactly what]] [[Mind Rape|they did]] [[Break the Cutie|to her]] ''far'' too vividly.
* This happens at least twice in ''[[MASHM*A*S*H (television)|M*A*S*H]]'' 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.}}
* 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 the [[Korean Series]] ''[[Winter Sonata]]'', Kang Joon Sang gets hit by a bus at age 18 and loses his memory, only to have it return 10 years later when he gets hit by a bus a ''second'' time.
* In an episode of ''[[The Twilight Zone]]'' 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.}}
* The eponymous character of ''[[Dexter]]'' blocked out the memory of {{spoiler|witnessing his mother's gruesome murder as a very young child}}, which was apparently so traumatic that it still turned him into a serial killer even though he didn't remember it until towards the end of season one of the series.
** He and {{spoiler|his older brother were separated after spending three days locked up in a packing crate with their mother's chainsaw-dismembered corpse. In Miami. A couple inches deep in blood. Although Dexter was young enough to repress it and Brian wasn't,}} both developed into serial killers with a penchant for extremely tidy dismemberment.
*** {{spoiler|[[Sympathy for the Devil|Watching Harry carry little Dexter away from Brian]] after [[Big Brother Instinct|they'd spent so long holding onto one another in the darkness]] made some viewers want to shoot the damn cop.}}
* In ''[[Sharpe]]|Sharpe's Peril]]'', Henry Simmerson loses his memory after being strung up naked in the Indian sun. It actually makes him a nicer person, compared to the arrogant bastard he was before, to the point he's even seen playing pat-a-cake with a young Indian girl.
* In the season 9 premiere of ''[[NCIS]]'' Tony is shot and cannot remember what happened. A psychologist talks his through the preceding events until he can remember who shot him.
* Similar to the above example, in the mid-season finale of the second season of ''[[White Collar]]'', {{spoiler|Mozzie is shot and later cannot remember anything about the shooting.}}
** It's worse for him because he has [[Photographic Memory|perfect recall,]] so not being able to remember something would be pretty jarring.
* In the season 4 premiere of ''[[Castle]]'' after being shot Beckett tells Castle that she does not remember anything about the shooting. {{spoiler|She remembers everything but does not want to deal with his [[Love Confession]].}}
* A key part of the crime drama ''[[Unforgettable]]''. The female lead has absolute perfect memory, but there's one day she cannot remember: the day her sister was murdered. She's convinced that if she can recover her memories of finding Rachel's body, she'll discover a clue as to who killed her.
* The ''[[Highlander the(TV Seriesseries)|Highlander]]'' episode "Through A Glass Darkly": An Immortal has a kind of mental meltdown in which he takes his student's head and the trauma triggers amnesia and a Fugue State.
** Episode "Patient Number 7": An Immortal woke up in a mental hospital with no memory of who or what she is, or why the police and armed thugs are chasing her. {{spoiler|Her trauma was when the thugs murdered her husband right in front of her.}}
* Season 4 of ''[[Tinsel]]'' has Fred Ade-Williams suffering from [[Missing Time]] because of this.
* In the new NBC series ''[[Awake]]'', Detective Britten cannot remember what happened before the car accident that killed either his wife or son, depending on which reality he's in.
* The ''[[Sherlock]]'' episode ''"The Hounds of Baskerville''" has Henry Knight claiming he watched his father being savaged by a hound when he was a young boy. It turns out that {{spoiler|he actually watched his father being murdered by a scientist while under the effects of a hallucinogenic chemical; the '"hound'" was something his mind created to cope with the trauma.}}
 
 
== [[Real Life]] ==
* [[Truth in Television]], at least as far as ''physical'' trauma (especially to the head) is concerned. On the end of emotional or psychological trauma, there is vigorous debate to what extent it occurs, but dissociative disorders - particularly dissociative amnesia - are what this trope is based off of.
** It falls under a category called 'Motivated Forgetting'. It is divided into two categories - repression and suppression. Repression is the Sigmund Freud style "it's too hurtful to remember so your subconscious buries it" stuff, and suppression is when you actively try to forget something. Repression has a little bit of evidence in that child abuse victims often can not recall the abuse later in life. Suppression can also occur to a certain degree, wherein people who concentrate on forgetting something are less likely to be able to recall it at a later time when asked to do so.
** It may not really count as forgetting, but shocking events which take a very short time to happen sometimes simply don't register in the brain in the first place; this can happen to road accident victims or similar.
** Dissociative amnesia, dissociative fugue disorder<ref> a condition characterized by long-term departure from one's home and the psychological creation of a new identity.</ref>, and dissociative identity disorder <ref> a condition characterized by the presence of multiple, independent identities and one that is the subject of a great deal of debate among psychologists.</ref> are the most extreme cases. Of course debate rages on as to how many true or planted examples there have been, but theoretically the brain is malleable enough when young so that if you experience emotional trauma as a very small child, your mind can protect itself by "pushing away" the memories, believing it didn't happen or it happened to someone else. Personally I've met two people who seemed to have some amnesia from their early years, and I believe it was real. But even if you don't remember it, it's still there. The individuals I knew had problems with eating disorders and substance abuse, and it wasn't until seeking treating treatment for those issues that they started delving into their memories. The brain can protect itself from immediate damage by blocking out the harmful memories themselves, but the trauma will always find some other way to manifest itself until it's dealt with
* When he was a boy, [[Stephen King]] saw a friend hit by a train; he claims to have no memory of the incident.
* Some sources say that this trope is completely false, that traumatic events ''can't'' be forgotten. Ever.
* The sources that tend to assert that emotionally and psychologically traumatic events ''can't'' be forgotten (Ever) tend to be technically correct, in the adrenaline and heightened stimulus response in the hippocampus and parahippocampus of the brain tend to embed traumatic events more strongly in an individual's memory. However, that said, this trope does occur regularly and this is why: although the event itself cannot be forgotten, the mind will deliberately sublimate and repress the traumatic memory in order to try to retain a degree of emotional and mental stability in the case where an even would be traumatic enough to instigate a dissociative fugue. Many victims of violence, particularly sexual violence as children, will not remember the events until either a trigger brings back the suppressed memory or the memory suppression eventually resolves itself as the mind starts to deal with and handle the trauma (usually when the individual is an adult and emotionally stable enough to deal with it) - the memory often starting to re-appear through [[Dreaming the Truth|dreams or nightmares]]. Usually in these cases, there will be a generalised dissociative state immediately following the traumatic event, and some changes in behaviour or personality may be noticed over the short term.
** One question that is asked of people being assessed for PTSD is whether or not they're unable to remember a significant part of a traumatic event. For those who are, they'll be able to remember a great deal of what traumatized them in horrifying detail with the exception of a portion of what happened to them.
 
 
== [[Video Games]] ==
* Used by the player character Daniel in ''[[Amnesia: The Dark Descent]]'', hence the name. He writes a note to himself prior to taking a drug which causes him to lose his memory, and as you play the game you begin to learn why he did it {{spoiler|He opened up a [[Sealed Evil in a Can]] and then in an attempt to remove the curse placed on him, he ended up helping a guy kill those whom he thought were criminals and murderers. Except it turns out to be innocent people he may have been slaughtering.}}
* In ''[[Final Fantasy VII]]'', Cloud Strife suffers a perfectly understandable case of [[Trauma-Induced Amnesia]], considering the incredible [[Trauma Conga Line]] 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 [[Complete Monster]] Hojo; and finally (5) is forced to helplessly watch Zack die in a gutwrenching heroic last stand to protect him.
** Though in his case, itsit's less amnesia and more broken memory. He was in a weird state after being experimented on, and created new memories from listening to Zack tell Cloud his story. After Zack died, he was able to pull himself together, yet his memories were still screwed up.
* In ''[[Tales of the Abyss]]'', Luke has [[Trauma-Induced Amnesia]] from a kidnapping seven years ago that wiped out all of his memories of the event -- asevent—as well as all memories of events prior to the kidnapping -- whilekidnapping—while Guy has amnesia about {{spoiler|the death of his family}}. In Luke's case {{spoiler|it's subverted once it turns out that the Luke that got kidnapped wasn't the one his family got back -- and the recovered one didn't exist prior to the kidnapping.}}
* The PC of ''[[Geneforge]] 5'' has this, from what information the player is able to gather. Many significant NPC's from throughout the series claim to vaguely recognize you, and new characters describe your past behavior from senseless rage to [[Superpower Meltdown]]. Though [[Wild Mass Guessing|speculation is rampant]], the true identity is only answered by the [[Shrug of God]]. Maybe it's just a device to justify re-explaining everything previous players should know, but new players wouldn't, and explain why the PC wouldn't have any defined relationship to previously famous NPC's.
* This happened to Shadow the Hedgehog following his apparent death in ''[[Sonic Adventure 2]]'', when he fell after teleporting Space Colony A.R.K. back into a stable orbit. Understandable, as there was presumably head trauma involved. {{spoiler|Apparently, the robot Eggman used to stop Shadow's fall was a bit clumsy.}} His quest in the next two games was to regain his lost memories. Poor Shadow, since he had only [[Heel Face Turn|overridden the fake memory intended to make him destroy the world]] a few minutes prior to his apparent death.
* ''[[Xenosaga]]'': {{spoiler|Shion saw both her parents being killed in front of her eyes, and then she resonated with the Zohar, calling the Gnosis and basically destroyed an entire planet... so she blocked all the memory from her childhood and that event. }}
* In ''[[Silent Hill 2]]'', {{spoiler|the protagonist has this caused by his guilt over killing his wife, even though it wasa a [[Mercy Killing]]}}.
* Oichi from ''[[Sengoku Basara]]''. It's revealed that after her {{spoiler|husband Nagamasa}} was murdered before her eyes by her [[Oda Nobunaga|brother]], she went crazy and was enslaved by her dark powers, which made her forget it all. By the third game, she's basically a blank slate.
* Ventus of ''[[Kingdom Hearts: Birth By Sleep]]''. {{spoiler|You'd forget stuff too if someone you thought you could trust caused you to get beaten into unconciousness, then quite literally cut your heart in half}}.
* Shirou of ''[[Fate/stay night]]'', ''Heaven's Feel'' route: {{spoiler|erases all his memories of Saber due to his crushing guilt at killing her (though she was corrupted at the time).}}
* ''[[Ace Attorney]]'': This was the given reason why Ema's and Edgeworth's respective memories of SL-9 and DL-6 were incredibly foggy and incomplete. Of, course, in Edgeworth's case {{spoiler|it turns out that the only thing he really forgot was throwing a gun. He was uncouncious for all of the remaining time.}}
* Invoked in ''[[Golden Sun]]''. The antagonists decide the memory of their crimes out of the witnesses.
* It turns out that ''[[Umineko no Naku Koro ni]]''{{'}}s {{spoiler|ENTIRE''entire PLOTplot'' revolves around this trope, since the entire series is essentially Battler remembering his past through testimonies and theories in the future.}}
* In ''[[Trails in The Sky]]'', Joshua seems to be suffering from this, though nobody can figure out why. {{spoiler|It's due to the fact that he doesn't want to remember that ''he, himself'' is the one who brutally murdered his own family, though not entirely of his own will.}}
* [[Your Mileage May Vary|May be a factor]] in why the [[Player Character|PlayerCharacters]]s of ''[[Knights of the Old Republic]]'' aren't going to say anything about their pasts. {{spoiler|Malak's attack left Revan ''very'' close to death, and the Exile's been through so much [[War Is Hell]] that the only way to stay halfway sane would be to spend the last decade working on forgetting.}}
* In ''[[Heavenly Sword]]'', Kai is repressing the memory of {{spoiler|her mother's murder at the hands of Flying Fox}}, until she is forced to remember. To elaborate, being forced to remember in this case consists of {{spoiler|Flying Fox actually ''[[Dead Guy on Display|putting Kai's mother's emaciated corpse on display]]'', knowing that Kai will discover it.}}
* Ashley Riot, protaganistprotagonist of ''[[Vagrant Story]]'', begins the game believing that he once had a wife and son who were murdered by thugs at a family picnic, but [[Manipulative Bastard]] Sydney proposes an alternate theory: Ashley murdered an innocent woman and her child during the course of his duties as a soldier, and through a combination of this trope and military brainwashing, convinced himself they were his family to help himself cope with the grief. [[The Un-Reveal|The game's writers deliberately left it vague as to which version of his backstory is correct]].
* Some of the events of ''[[Assassin's Creed II]]'' have been supressedsuppressed in Ezio's memories, and only become available to Desmond in [[Assassin's Creed: Brotherhood|Brotherhood]] when he has achieved a greater level of sync. These memories include giving a [[Viking Funeral]] to his father and brothers after their execution, finding out his girlfriend Christina has left him for another man and delivering an [[If You Ever Do Anything to Hurt Her...]] speech to her new fiancefiancé, getting snubbed after trying to reignite his love for Christina during the Venezia carnival, and Christina dying in his arms after being attacked during the bonfire of the vanities.
* In ''[[The Elder Scrolls V: Skyrim]]'', a priestess from a cult of cannibals claims that the Dovahkiin lost a sibling when they were a child, and [[I'm a Humanitarian|took a bite out of the corpse out of curiosity]], making the two of them [[Not So Different]]. If the Dovahkiin denies any knowledge of this event, she claims that most people block out the memories of their first incident of cannibalism out of revulsion. Whether or not she's telling the truth is left up to the player to decide.
 
 
== [[Web Comics]] ==
* Amity of ''[[Miamaska]]'' suffers from this after hitting her head on the ground from a fall.
* Partially trauma -induced and partially because she was just too young, Fiona from ''[[YU+ME: dream]]'' initially does not remember how or why her mother died.
 
 
== [[Web Original]] ==
* Played for laughs in ''[[AH Dot Com the Series]]'', which has [[Chew Toy|luakel]] undergo [[Gender Bender|a traumatic]] [[Squick|event]] and this erase the memory of itself, except when other crew members bring it up and he has a fit. Notably the same thing happened to his mirror universe [[Evil Counterpart|counterpart]], who is now permanently [[Ax Crazy]].
* A plotdeviceplot device in ''[[Sailor Nothing]]''.{{context}}
* A dramatic retcon version in [[Equestria Chronicles]] occurs with Iron Hoof, during his time as Iron Claw.
 
 
== [[Western Animation]] ==
* Naturally, ''[[The Simpsons (animation)|The Simpsons]].'':
** In one episode, Homer is hypnotized, which triggers his memory of finding a dead body in the old swimming hole.
* Helga Pataki of ''[[Hey Arnold!]]!'' suffers from this in the episode "Beaned" when she's struck by a baseball hit by old 'Dangerous Lumber' himself, Arnold. After waking up fully recovered the next morning, Helga continues faking her amnesia to guilt-trip Arnold into taking care of her, but begins to feel sorry for forcing him to pay attention to her. She fakes another head injury which 'cures' her amnesia and uses her usual [[Tsundere|crabby bluster]] to try and put some distance between them, but is pleasantly surprised that he still wants to make sure she's okay.
 
== [[FanReal FictionLife]] ==
----
* [[Truth in Television]], at least as far as ''physical'' trauma (especially to the head) is concerned. On the end of emotional or psychological trauma, there is vigorous debate to what extent it occurs, but dissociative disorders - particularly dissociative amnesia - are what this trope is based off of.
** It falls under a category called 'Motivated Forgetting'. It is divided into two categories - repression and suppression. Repression is the Sigmund Freud style "it's too hurtful to remember so your subconscious buries it" stuff, and suppression is when you actively try to forget something. Repression has a little bit of evidence in that child abuse victims often can not recall the abuse later in life. Suppression can also occur to a certain degree, wherein people who concentrate on forgetting something are less likely to be able to recall it at a later time when asked to do so.
** It may not really count as forgetting, but shocking events which take a very short time to happen sometimes simply don't register in the brain in the first place; this can happen to road accident victims or similar.
** Dissociative amnesia, dissociative fugue disorder,<ref> a condition characterized by long-term departure from one's home and the psychological creation of a new identity.</ref>, and dissociative identity disorder <ref> a condition characterized by the presence of multiple, independent identities and one that is the subject of a great deal of debate among psychologists.</ref> are the most extreme cases. Of course debate rages on as to how many true or planted examples there have been, but theoretically the brain is malleable enough when young so that if you experience emotional trauma as a very small child, your mind can protect itself by "pushing away" the memories, believing it didn't happen or it happened to someone else. Personally I've met two people who seemed to have some amnesia from their early years, and I believe it was real. But even if you don't remember it, it's still there. The individuals I knew had problems with eating disorders and substance abuse, and it wasn't until seeking treating treatment for those issues that they started delving into their memories. The brain can protect itself from immediate damage by blocking out the harmful memories themselves, but the trauma will always find some other way to manifest itself until it's dealt with
* When he was a boy, [[Stephen King]] saw a friend hit by a train; he claims to have no memory of the incident.
* Some sources say that this trope is completely false, that traumatic events ''can't'' be forgotten. Ever.
* The sources that tend to assert that emotionally and psychologically traumatic events ''can't'' be forgotten (Ever) tend to be technically correct, in the adrenaline and heightened stimulus response in the hippocampus and parahippocampus of the brain tend to embed traumatic events more strongly in an individual's memory. However, that said, this trope does occur regularly and this is why: although the event itself cannot be forgotten, the mind will deliberately sublimate and repress the traumatic memory in order to try to retain a degree of emotional and mental stability in the case where an even would be traumatic enough to instigate a dissociative fugue. Many victims of violence, particularly sexual violence as children, will not remember the events until either a trigger brings back the suppressed memory or the memory suppression eventually resolves itself as the mind starts to deal with and handle the trauma (usually when the individual is an adult and emotionally stable enough to deal with it) - the memory often starting to re-appear through [[Dreaming the Truth|dreams or nightmares]]. Usually in these cases, there will be a generalised dissociative state immediately following the traumatic event, and some changes in behaviour or personality may be noticed over the short term.
** One question that is asked of people being assessed for PTSD is whether or not they're unable to remember a significant part of a traumatic event. For those who are, they'll be able to remember a great deal of what traumatized them in horrifying detail with the exception of a portion of what happened to them.
 
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[[Category:{{PAGENAME}}]]
[[Category:Madness Tropes]]
[[Category:Memory Tropes]]
[[Category:Trauma-Induced Amnesia]]
{{related|Heroic BSOD}}
{{related|Laser-Guided Amnesia}}