History Main / SharedMassHallucination

3rd Jul '17 1:06:57 PM StFan
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[[ArtisticLicenseBiology Hallucinations don't work that way]] - even if multiple people were exposed to the same hallucinogen, they wouldn't see the same thing. The only time it's remotely plausible is if the people were already expecting to see whatever it was they believed they saw (which, in fact, is a very large part of how StageMagic is performed) - and even then, they probably wouldn't share the particular details of the hallucination.

to:

[[ArtisticLicenseBiology Hallucinations don't work that way]] - -- even if multiple people were exposed to the same hallucinogen, they wouldn't see the same thing. The only time it's remotely plausible is if the people were already expecting to see whatever it was they believed they saw (which, in fact, is a very large part of how StageMagic is performed) - -- and even then, they probably wouldn't share the particular details of the hallucination.






!!Examples

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!!Examples
!!Examples:



[[folder: Anime and Manga ]]

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[[folder: Anime and Manga ]]
[[folder:Anime & Manga]]






[[folder: Comic Books ]]

* In the old ''Comicbook/{{X-Factor}}'' comic, they blamed ''ComicBook/{{Inferno}}'' on mass hallucinations caused by A.I.M. satellites. At least it's plausible given the weird tech that villain groups have.

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[[folder: Comic Books ]]

[[folder:Comic Books]]
* In the old ''Comicbook/{{X-Factor}}'' ''ComicBook/XFactor'' comic, they blamed ''ComicBook/{{Inferno}}'' on mass hallucinations caused by A.I.M. satellites. At least it's plausible given the weird tech that villain groups have.



* In the ''{{Series/Angel}}: After The Fall'' comics, after the Senior Partners [[BrokenMasquerade break the masquerade]] by sending the whole city of Los Angeles to hell and then [[RetCon undo it]], everyone [[RippleEffectProofMemory still remembers]] it, but most of the {{muggles}} convince themselves that it was actually a shared mass hallucination. And someone makes a Hollywood film out of, so everyone outside of LA thinks it's fiction.


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* In the ''{{Series/Angel}}: ''Series/{{Angel}}: After The Fall'' comics, after the Senior Partners [[BrokenMasquerade break the masquerade]] by sending the whole city of Los Angeles to hell and then [[RetCon undo it]], everyone [[RippleEffectProofMemory still remembers]] it, but most of the {{muggles}} convince themselves that it was actually a shared mass hallucination. And someone makes a Hollywood film out of, so everyone outside of LA thinks it's fiction.

fiction.



[[folder: Film ]]

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[[folder: Film ]]
[[folder:Films -- Live-Action]]



* EPA official Walter Peck's explanation for the ghosts in ''Film/{{Ghostbusters 1984}}'':
-->'''Peck''': These men use nerve gasses to induce hallucinations. People think they're seeing ghosts and they call these bozos, who show up with a fake light show.

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* EPA official Walter Peck's explanation for the ghosts in ''Film/{{Ghostbusters 1984}}'':
-->'''Peck''':
''Film/{{Ghostbusters|1984}}'':
-->'''Peck:'''
These men use nerve gasses to induce hallucinations. People think they're seeing ghosts and they call these bozos, who show up with a fake light show.






[[folder: Literature ]]

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[[folder: Literature ]]
[[folder:Literature]]






[[folder: Live Action TV ]]

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[[folder: Live Action TV ]]
[[folder:Live-Action TV]]



** It seems to be implied in ''Series/DoctorWho'' that it isn't so much a case of outright disbelief so much as humans responding to the threat of something very scary and out of their control with the rather useless tactic of pretending it didn't happen. Evidence that this is the case was provided in the 2007 Christmas episode, where the Doctor found London to be almost completely deserted due to the usual inhabitants having realised that Christmas in London = dangerous weird stuff and cleared off.

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** It seems to be implied in ''Series/DoctorWho'' that it isn't so much a case of outright disbelief so much as humans responding to the threat of something very scary and out of their control with the rather useless tactic of pretending it didn't happen. Evidence that this is the case was provided in the 2007 Christmas episode, where the Doctor found London to be almost completely deserted due to the usual inhabitants having realised realized that Christmas in London = equals dangerous weird stuff stuff, and cleared off.



* In Series/{{House}} in the episode "Airborne" a passenger of a plane develops some of the symptoms of a highly contagious virus. Soon the other passengers start to develop the same symptoms. It turns out to be a case of mass hysteria, the original passenger has a case of altitude sickness, which is not contagious. Hysteria caused the other passengers to feel sick and even develop rashes and nausea.


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* ''Series/{{House}}'': In Series/{{House}} in the episode "Airborne" a passenger of a plane develops some of the symptoms of a highly contagious virus. Soon the other passengers start to develop the same symptoms. It turns out to be a case of mass hysteria, the original passenger has a case of altitude sickness, which is not contagious. Hysteria caused the other passengers to feel sick and even develop rashes and nausea.

nausea.



[[folder: Real Life ]]

* [[http://en.wikipedia.org/wiki/Penis_panic A penis panic]] is a form of mass hysteria where groups of people suddenly become convinced that their genitals are shrinking or disappearing. Many other strange mass hysterias and hallucinations have also occurred in history, such as those documented in the book [[http://en.wikipedia.org/wiki/Extraordinary_Popular_Delusions_and_the_Madness_of_Crowds Extraordinary Popular Delusions and the Madness of Crowds]].

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[[folder: Real Life ]]


[[folder:Myths & Religion]]
* [[http://en.wikipedia.org/wiki/Penis_panic A penis panic]] is a form One story says that after the resurrection of mass hysteria where groups Jesus, Roman troops were coerced into claiming that Jesus' disciples overcame them and stole the body, despite them all having good alibis. After reports of Jesus walking and talking for a full forty days after his alleged demise, the Romans claimed that he was OnlyMostlyDead despite three days being far more than any human could survive without treatment after flagellation alone, much less [[ThereIsNoKillLikeOverkill flagellation, crucifixion, and a spear wound.]] Somewhat subverted in that Christianity eventually became the official state religion of the Roman Empire.\\\
Of course even according to the Gospels,
people suddenly become convinced that their genitals are shrinking or disappearing. Many other strange mass hysterias who knew Jesus well took a long time to recognize him as who he was, thus it can be questioned if he was indeed the same person before and hallucinations have after the crucifixion. Since these accounts were also occurred in history, such as those documented in written down only decades after when the book [[http://en.wikipedia.org/wiki/Extraordinary_Popular_Delusions_and_the_Madness_of_Crowds Extraordinary Popular Delusions and the Madness of Crowds]].
time when these events were said to occur (and without being attested elsewhere) exactly what truly happened remains debated by historians.



[[folder: Religion ]]

* One story says that after the resurrection of Jesus, Roman troops were coerced into claiming that Jesus' disciples overcame them and stole the body, despite them all having good alibis. After reports of Jesus walking and talking for a full forty days after his alleged demise, the Romans claimed that he was OnlyMostlyDead despite three days being far more than any human could survive without treatment after flagellation alone, much less [[ThereIsNoKillLikeOverkill flagellation, crucifixion, and a spear wound.]] Somewhat subverted in that Christianity eventually became the official state religion of the Roman Empire.
** Of course even according to the Gospels, people who knew Jesus well took a long time to recognize him as who he was, thus it can be questioned if he was indeed the same person before and after the crucifixion. Since these accounts were also written down only decades after when the time when these events were said to occur (and without being attested elsewhere) exactly what truly happened remains debated by historians.

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[[folder: Religion ]]

[[folder:Video Games]]
* One story says that after In ''VideoGame/ProfessorLaytonAndTheDiabolicalBox'', [[spoiler:this actually happens, and it's the resurrection of Jesus, Roman troops were coerced into claiming that Jesus' disciples overcame them and stole explanation for the body, despite them all entire second half of the game. The game uses the "expectations" justification by having good alibis. After reports of Jesus walking and talking for a full forty days after his alleged demise, the Romans claimed that he was OnlyMostlyDead despite three days being far more than any human could survive without treatment after flagellation alone, much less [[ThereIsNoKillLikeOverkill flagellation, crucifixion, and a spear wound.]] Somewhat subverted in that Christianity eventually became the official state religion photos of the Roman Empire.
** Of course even according
town set up at the train station. Since all the main characters get to the Gospels, people who knew Jesus well took a long time to recognize him as who he was, thus it can be questioned if he was indeed town by way of the train, they all see the photos so they all see the same person before and after the crucifixion. Since these accounts were thing. Presumably any varying details aren't worth talking about.]] This is also written down only decades after when the time when these events were said justification for why [[spoiler:the box is able to occur (and without being attested elsewhere) exactly what truly happened remains debated by historians.
kill people. It has a little bit of the gas in it, so anyone who opens it expecting to die, will.]]



[[folder: Video Games ]]

* In ''ProfessorLaytonAndTheDiabolicalBox'', [[spoiler:this actually happens, and it's the explanation for the entire second half of the game. The game uses the "expectations" justification by having photos of the town set up at the train station. Since all the main characters get to the town by way of the train, they all see the photos so they all see the same thing. Presumably any varying details aren't worth talking about.]]
** This is also the justification for why [[spoiler: the box is able to kill people. It has a little bit of the gas in it, so anyone who opens it expecting to die, will.]]

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[[folder: Video Games ]]

[[folder:Visual Novels]]
* In ''ProfessorLaytonAndTheDiabolicalBox'', [[spoiler:this actually happens, and it's the explanation for the entire second half One of the game. The game uses central ideas in ''VisualNovel/ChaosHead'', but it runs on the "expectations" justification by having photos of the town set up at the train station. Since all the main characters idea in reverse: if you can get more than one person to the town by way of the train, they all see the photos so they all see the same thing. Presumably any varying details aren't worth talking about.]]
** This is also
thing (real or not), it becomes real. Whether it's explained as magic or science depends on the justification for why [[spoiler: character given the box is able to kill people. It has a little bit of explanation, although the gas in it, so anyone who opens it expecting to die, will.]]
story focuses more on the scientific one.



[[folder: Visual Novels ]]

* One of the central ideas in ''VisualNovel/ChaosHead'', but it runs on the idea in reverse: if you can get more than one person to see the same thing (real or not), it becomes real. Whether it's explained as magic or science depends on the character given the explanation, although the story focuses more on the scientific one.

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[[folder: Visual Novels ]]

[[folder:Web Comics]]
* One In ''Webcomic/GirlGenius'', it really was a [[http://www.girlgeniusonline.com/comic.php?date=20070129 shared mass hallucination]]. It was caused through a combination of a gas inducing a hypnotic hallucinatory state and someone yelling about the central ideas in ''VisualNovel/ChaosHead'', but it runs on Heterodynes being back. Even so, [[http://www.girlgeniusonline.com/comic.php?date=20070228 there was some disagreement about the idea in reverse: if you can get more than one person to see the same thing (real or not), it becomes real. Whether it's explained as magic or science depends on the character given the explanation, although the story focuses more on the scientific one.
details]].



[[folder: Web Comics ]]

* In ''Webcomic/GirlGenius'', it really was a [[http://www.girlgeniusonline.com/comic.php?date=20070129 shared mass hallucination]]. It was caused through a combination of a gas inducing a hypnotic hallucinatory state and someone yelling about the Heterodynes being back.
** Even so, [[http://www.girlgeniusonline.com/comic.php?date=20070228 there was some disagreement about the details]].

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[[folder: Web Comics ]]

[[folder:Western Animation]]
* In ''Webcomic/GirlGenius'', the ''WesternAnimation/LooneyTunes'' short "Punch Trunk" people are thrown into a panic at sightings of a six-inch-tall elephant. An expert comes on television to dismiss it really was as a [[http://www.girlgeniusonline.com/comic.php?date=20070129 shared mass hallucination]]. It was hallucination caused through a combination of a gas inducing a hypnotic hallucinatory state and someone yelling about by the Heterodynes being back.
** Even so, [[http://www.girlgeniusonline.com/comic.php?date=20070228 there was some disagreement about
stress of modern life - only to be undercut by the details]].
elephant wandering into the studio.



[[folder: Western Animation ]]

* In the ''WesternAnimation/LooneyTunes'' short "Punch Trunk" people are thrown into a panic at sightings of a six-inch-tall elephant. An expert comes on television to dismiss it as a mass hallucination caused by the stress of modern life - only to be undercut by the elephant wandering into the studio.

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[[folder: Western Animation ]]

[[folder:Real Life]]
* In the ''WesternAnimation/LooneyTunes'' short "Punch Trunk" [[http://en.wikipedia.org/wiki/Penis_panic A penis panic]] is a form of mass hysteria where groups of people suddenly become convinced that their genitals are thrown into a panic at sightings of a six-inch-tall elephant. An expert comes on television to dismiss it as a shrinking or disappearing. Many other strange mass hallucination caused by hysterias and hallucinations have also occurred in history, such as those documented in the stress of modern life - only to be undercut by book [[http://en.wikipedia.org/wiki/Extraordinary_Popular_Delusions_and_the_Madness_of_Crowds Extraordinary Popular Delusions and the elephant wandering into the studio.
Madness of Crowds]].
9th Oct '16 1:30:25 PM Moonstreak
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[[ArtisticLicenseBiology Hallucinations don't work that way]]-even if multiple people were exposed to the same hallucinogen, they wouldn't see the same thing. The only time it's remotely plausible is if the people were already expecting to see whatever it was they believed they saw (which, in fact, is a very large part of how StageMagic is performed) - and even then, they probably wouldn't share the particular details of the hallucination.

to:

[[ArtisticLicenseBiology Hallucinations don't work that way]]-even way]] - even if multiple people were exposed to the same hallucinogen, they wouldn't see the same thing. The only time it's remotely plausible is if the people were already expecting to see whatever it was they believed they saw (which, in fact, is a very large part of how StageMagic is performed) - and even then, they probably wouldn't share the particular details of the hallucination.
11th Jun '16 12:00:05 PM Morgenthaler
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[[AC:{{Anime}} and {{Manga}}]]

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[[AC:{{Anime}} [[foldercontrol]]

[[folder: Anime
and {{Manga}}]]Manga ]]



[[AC:ComicBooks]]

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[[AC:{{Film}}]]

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[[AC:{{Literature}}]]

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[[AC:LiveActionTV]]

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[[AC:RealLife]]
* [[http://en.wikipedia.org/wiki/Penis_panic A penis panic]] is a form of mass hysteria where groups of people suddenly become convinced that their genitals are shrinking or disappearing. Many other strange mass hysterias and hallucinations have also occurred in history, such as those documented in the book [[http://en.wikipedia.org/wiki/Extraordinary_Popular_Delusions_and_the_Madness_of_Crowds Extraordinary Popular Delusions and the Madness of Crowds]].

[[AC:Religion]]

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[[AC:RealLife]]
[[/folder]]

[[folder: Real Life ]]

* [[http://en.wikipedia.org/wiki/Penis_panic A penis panic]] is a form of mass hysteria where groups of people suddenly become convinced that their genitals are shrinking or disappearing. Many other strange mass hysterias and hallucinations have also occurred in history, such as those documented in the book [[http://en.wikipedia.org/wiki/Extraordinary_Popular_Delusions_and_the_Madness_of_Crowds Extraordinary Popular Delusions and the Madness of Crowds]].

[[AC:Religion]]
Crowds]].

[[/folder]]

[[folder: Religion ]]



[[AC:VideoGames]]

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[[AC:VideoGames]][[/folder]]

[[folder: Video Games ]]



[[AC:VisualNovels]]

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[[AC:WebComics]]

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[[folder: Web Comics ]]



[[AC:WesternAnimation]]

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[[AC:WesternAnimation]][[/folder]]

[[folder: Western Animation ]]


Added DiffLines:

[[/folder]]
11th Jun '16 10:25:28 AM Morgenthaler
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* In ''Literature/TheDresdenFiles'' book ''Dead Beat'' witnesses to the climax involving Harry [[spoiler: [[CrowningMomentOfAwesome reanimating a zombie T-rex and riding it into battle through the streets of Chicago]]]] apparently let themselves be convinced that it was an example of this trope caused by a hallucinogenic reaction to the spores from a batch of mouldy bread. Harry is fully aware how ridiculous this explanation is, but chalks it up to another case of humans swallowing ''anything'' rather than face up to the implications of what they've seen. To be fair, though, this particular incident is ''so'' ridiculous that even people who might normally be open to the idea of the supernatural would probably find the bread explanation less absurd.

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* In ''Literature/TheDresdenFiles'' book ''Dead Beat'' witnesses to the climax involving Harry [[spoiler: [[CrowningMomentOfAwesome reanimating a zombie T-rex and riding it into battle through the streets of Chicago]]]] Chicago]] apparently let themselves be convinced that it was an example of this trope caused by a hallucinogenic reaction to the spores from a batch of mouldy bread. Harry is fully aware how ridiculous this explanation is, but chalks it up to another case of humans swallowing ''anything'' rather than face up to the implications of what they've seen. To be fair, though, this particular incident is ''so'' ridiculous that even people who might normally be open to the idea of the supernatural would probably find the bread explanation less absurd.
11th Jun '16 10:25:11 AM Morgenthaler
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* TheMasterAndMargarita, everything the Devil did is later explained as hypnosis, mass hypnosis, or, in one case, long distance hypnosis.

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* TheMasterAndMargarita, ''Literature/TheMasterAndMargarita'', everything the Devil did is later explained as hypnosis, mass hypnosis, or, in one case, long distance hypnosis.



* ''GraveyardSchool'' namedrops this in one book, then immediately has it subverted. It's never made quite clear ''how'' TheMasquerade remained intact after [[spoiler:a supposedly hallucinated dinosaur ate a teacher]].

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* ''GraveyardSchool'' ''Literature/GraveyardSchool'' namedrops this in one book, then immediately has it subverted. It's never made quite clear ''how'' TheMasquerade remained intact after [[spoiler:a supposedly hallucinated dinosaur ate a teacher]].



* In TheDresdenFiles book ''Dead Beat'' witnesses to the climax involving Harry [[spoiler: [[CrowningMomentOfAwesome reanimating a zombie T-rex and riding it into battle through the streets of Chicago]]]] apparently let themselves be convinced that it was an example of this trope caused by a hallucinogenic reaction to the spores from a batch of mouldy bread. Harry is fully aware how ridiculous this explanation is, but chalks it up to another case of humans swallowing ''anything'' rather than face up to the implications of what they've seen. To be fair, though, this particular incident is ''so'' ridiculous that even people who might normally be open to the idea of the supernatural would probably find the bread explanation less absurd.

to:

* In TheDresdenFiles ''Literature/TheDresdenFiles'' book ''Dead Beat'' witnesses to the climax involving Harry [[spoiler: [[CrowningMomentOfAwesome reanimating a zombie T-rex and riding it into battle through the streets of Chicago]]]] apparently let themselves be convinced that it was an example of this trope caused by a hallucinogenic reaction to the spores from a batch of mouldy bread. Harry is fully aware how ridiculous this explanation is, but chalks it up to another case of humans swallowing ''anything'' rather than face up to the implications of what they've seen. To be fair, though, this particular incident is ''so'' ridiculous that even people who might normally be open to the idea of the supernatural would probably find the bread explanation less absurd.
28th May '16 7:42:00 AM TheOneWhoTropes
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* The mages of ''MahouSenseiNegima'' use something like this maintain their {{Masquerade}}. A villain attempting to reveal said Masquerade used just the opposite: remove people's logical reaction to disbelieve the mystic, then spread over the planet to make sure no skeptic is left unbelieving (magically powered suggestion on a massive scale).

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* The mages of ''MahouSenseiNegima'' ''Manga/MahouSenseiNegima'' use something like this maintain their {{Masquerade}}. A villain attempting to reveal said Masquerade used just the opposite: remove people's logical reaction to disbelieve the mystic, then spread over the planet to make sure no skeptic is left unbelieving (magically powered suggestion on a massive scale).
20th May '16 6:57:48 AM erforce
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-->--'''Dr. Tom Nesbitt''', ''Film/TheBeastFromTwentyThousandFathoms''

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-->--'''Dr.-->-- '''Dr. Tom Nesbitt''', ''Film/TheBeastFromTwentyThousandFathoms''



* EPA official Walter Peck's explanation for the ghosts in ''Film/{{Ghostbusters}}'':

to:

* EPA official Walter Peck's explanation for the ghosts in ''Film/{{Ghostbusters}}'':''Film/{{Ghostbusters 1984}}'':
12th Mar '16 8:10:23 AM Prfnoff
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* One of the central ideas in ''ChaosHead'', but it runs on the idea in reverse: if you can get more than one person to see the same thing (real or not), it becomes real. Whether it's explained as magic or science depends on the character given the explanation, although the story focuses more on the scientific one.

to:

* One of the central ideas in ''ChaosHead'', ''VisualNovel/ChaosHead'', but it runs on the idea in reverse: if you can get more than one person to see the same thing (real or not), it becomes real. Whether it's explained as magic or science depends on the character given the explanation, although the story focuses more on the scientific one.
13th Jul '15 6:19:03 AM Morgenthaler
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* A minor version in ''TheBeastFromTwentyThousandFathoms'', where the hero, Dr. Nesbitt, lost in an Arctic wasteland, finds his colleague, George, raving about seeing a monster. Soon afterward, Nesbitt sees the monster himself, but George freezes to death. When he gets back to base, Nesbitt is told by his superiors that the cold can cause hallucinations, but since George saw the exact same thing, Nesbitt is not convinced.

to:

* A minor version in ''TheBeastFromTwentyThousandFathoms'', ''Film/TheBeastFromTwentyThousandFathoms'', where the hero, Dr. Nesbitt, lost in an Arctic wasteland, finds his colleague, George, raving about seeing a monster. Soon afterward, Nesbitt sees the monster himself, but George freezes to death. When he gets back to base, Nesbitt is told by his superiors that the cold can cause hallucinations, but since George saw the exact same thing, Nesbitt is not convinced.
17th May '15 4:54:04 PM nombretomado
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* In a SuzumiyaHaruhi short story, ''Snow Mountain Syndrome'', the plot of the entire story (almost a day long) was explained to Haruhi as shared '''Highway Hypnosis'''. From wandering in a blizzard.

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* In a SuzumiyaHaruhi LightNovel/HaruhiSuzumiya short story, ''Snow Mountain Syndrome'', the plot of the entire story (almost a day long) was explained to Haruhi as shared '''Highway Hypnosis'''. From wandering in a blizzard.
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http://tvtropes.org/pmwiki/article_history.php?article=Main.SharedMassHallucination