Memory Alpha
Memory Alpha
(memory virus)
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{{multiple}}
An '''engram''' or '''memory engram''' is an impression made physically in [[neuron|neural tissue]] of the [[brain]] by any mental stimulus, thereby explaining the persistence of memory.
 
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[[File:Memory engrams.jpg|thumb|Two memory engrams]]
 
An '''engram''' or '''memory engram''' was an impression made physically in [[neuron|neural tissue]] of the [[brain]] by any mental stimulus, thereby explaining the persistence of [[memory]].
   
Shortly before [[2268]], [[Doctor|Dr.]] [[Richard Daystrom]] developed [[multitronic]]s – a method of constructing a computer that could think, and of impressing memory engrams upon its circuits. The result was the [[M-5 computer]], developed with Daystrom's own engrams. As Daystrom was near a nervous breakdown at the time, the M-5 was (like its predecessors M-1 through M-4) "not entirely successful". While multitronics showed some promise, it was eventually superseded by [[isolinear circuitry]]. ({{TOS|The Ultimate Computer}})
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Shortly before [[2268]], [[Dr.]] [[Richard Daystrom]] developed [[multitronic]]s – a method of constructing a computer that could think, and of impressing memory engrams upon its circuits. The result was the [[M-5 multitronic unit]], developed with Daystrom's own engrams. As Daystrom was near a nervous breakdown at the time, the M-5 was (like its predecessors M-1 through M-4) "not entirely successful". While multitronics showed some promise, it was eventually superseded by [[isolinear circuitry]]. ({{TOS|The Ultimate Computer}})
   
 
[[File:Memory beam.jpg|thumb|A [[memory beam]] erasing parts of [[James T. Kirk]]'s memory]]
 
[[File:Memory beam.jpg|thumb|A [[memory beam]] erasing parts of [[James T. Kirk]]'s memory]]
 
[[Memory beam]]s were able to influence one's memory by erasing engrams in the neural tissue. [[James T. Kirk]] experienced this first hand on [[Amerind]]. ({{TOS|The Paradise Syndrome}})
 
[[Memory beam]]s were able to influence one's memory by erasing engrams in the neural tissue. [[James T. Kirk]] experienced this first hand on [[Amerind]]. ({{TOS|The Paradise Syndrome}})
   
[[Telepathic memory retrieval]], as used by the [[Ullian]]s involved their using [[telepath]]ic abilities to retrieve and expand lost or faded memory engrams of an individual. ({{TNG|Violations}})
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[[Telepathic memory retrieval]], as used by the [[Ullian]]s, involved their using [[telepath]]ic abilities to retrieve and expand lost or faded memory engrams of an individual. ({{TNG|Violations}})
   
A [[memory wipe]] is a medical procedure designed for the purpose of selectively eliminating memory engrams from the mind of an individual. ({{TNG|Pen Pals}})
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The [[memory virus]] was a pathogenic [[parasite]] that disguised itself as a memory engram – normally a memory so traumatic that the host suppressed it into the subconscious. ({{VOY|Flashback}})
   
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A [[memory wipe]] is a medical procedure designed for the purpose of selectively eliminating memory engrams from the mind of an individual. ({{TNG|Pen Pals}}; {{DS9|Sons of Mogh}})
The [[Banean]] punished murderers by forcing them to relive their victim's last moments every fourteen hours; this was done by inserting the memory engrams of the victim into their brain. ({{VOY|Ex Post Facto}})
 
   
The [[Quarren (species)|Quarren]] edit the memory engrams of [[humanoid]]s they capture in order to gather workers for their [[homeworld]] of [[Quarra]]. ({{VOY|Workforce|Workforce, Part II}})
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The [[Banea]] punished [[murder]]ers by forcing them to relive their victim's last moments every fourteen hours; this was done by inserting the memory engrams of the victim into their brain. [[Tom Paris]]' reaction to this method showed that it harmed the [[human]] [[brain]]. ({{VOY|Ex Post Facto}})
   
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[[The Doctor]] conducted [[biomolecular scan]]s of Tom Paris and [[B'Elanna Torres]] following their exhibiting odd behavior, performing actions while on duty aboard the {{USS|Voyager}} but claiming to know nothing about them. He discovered that during these incidents, a different memory pattern was present in place of their normal engrams, which he believed to be an entirely different [[brain wave pattern]] superimposed over their own. ({{VOY|Cathexis}})
The [[Mari]] would seek out memory engrams that contained the memories of violent thoughts and remove them, because having violent thoughts was a crime on their world. ({{VOY|Random Thoughts}})
 
   
 
The [[Mari]] sought out memory engrams that contained the memories of violent thoughts. The Mari then removed those engrams, because having violent thoughts was a crime on [[Mari homeworld|their world]]. This procedure was known as an [[engramatic purge]]. ({{VOY|Random Thoughts}})
Several of [[Data]]'s memory engrams were damaged after he was shot by a [[Son'a]] weapon on [[Ba'ku (planet)|Ba'ku]]. This caused the activation of his [[memory loss fail-safe system]]. Later, on board the {{USS|Enterprise|NCC-1701-E|-E}}, [[Geordi La Forge]] replaced them. When Data was reactivated, his first inquiry was pertaining to the missing engrams. ({{film|9}})
 
   
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The {{dis|Quarren|species}} edited the memory engrams of [[humanoid]]s they captured in order to gather workers for their [[homeworld]] of [[Quarra]]. ({{VOY|Workforce|Workforce, Part II}})
The [[memory virus]] is a pathogenic [[parasite]] that disguised itself as a memory engram – normally a memory so traumatic that the host suppressed it into the subconscious.
 
  +
 
In [[2375]], several of [[Data]]'s memory engrams were damaged after he was shot by a [[Son'a]] weapon on the [[Ba'ku planet]]. This caused the activation of his [[memory loss fail-safe system]]. Later, on board the {{USS|Enterprise|NCC-1701-E|-E}}, [[Geordi La Forge]] replaced them. When Data was reactivated, his first inquiry was pertaining to the missing engrams. ({{film|9}})
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''In an [[alternate timeline|alternate]] [[2379]], [[Kes]] had lost over ninety-nine percent of her memory engrams due to the effect of the [[morilogium]]. After being sent back in [[time]] a few weeks due to a side-effect of [[The Doctor]]'s [[bio-temporal chamber]], she had lost over ninety-eight percent of the engrams. After yet another such time-shift, to her ninth [[birthday]], the amount was reported as over ninety-five percent.'' ({{VOY|Before and After}})
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In the [[29th century]], [[Lieutenant]] [[Ducane]] explained that because [[Kathryn Janeway]] and [[Seven of Nine]] were never [[Temporal transporter|transported]] into their relative futures, their memory engrams would not require re-sequencing. ({{VOY|Relativity}})
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==See also==
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*[[Multitronic engrammatic interpreter]]
   
 
== External link ==
 
== External link ==
 
* {{wikipedia|Engram (neuropsychology)}}
 
* {{wikipedia|Engram (neuropsychology)}}
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[[de:Gedächtnis]]
 
[[Category:Biology]]
 
[[Category:Biology]]

Latest revision as of 17:59, 22 April 2021

Multiple realities
(covers information from several alternate timelines)
Memory engrams

Two memory engrams

An engram or memory engram was an impression made physically in neural tissue of the brain by any mental stimulus, thereby explaining the persistence of memory.

Shortly before 2268, Dr. Richard Daystrom developed multitronics – a method of constructing a computer that could think, and of impressing memory engrams upon its circuits. The result was the M-5 multitronic unit, developed with Daystrom's own engrams. As Daystrom was near a nervous breakdown at the time, the M-5 was (like its predecessors M-1 through M-4) "not entirely successful". While multitronics showed some promise, it was eventually superseded by isolinear circuitry. (TOS: "The Ultimate Computer")

Memory beam

A memory beam erasing parts of James T. Kirk's memory

Memory beams were able to influence one's memory by erasing engrams in the neural tissue. James T. Kirk experienced this first hand on Amerind. (TOS: "The Paradise Syndrome")

Telepathic memory retrieval, as used by the Ullians, involved their using telepathic abilities to retrieve and expand lost or faded memory engrams of an individual. (TNG: "Violations")

The memory virus was a pathogenic parasite that disguised itself as a memory engram – normally a memory so traumatic that the host suppressed it into the subconscious. (VOY: "Flashback")

A memory wipe is a medical procedure designed for the purpose of selectively eliminating memory engrams from the mind of an individual. (TNG: "Pen Pals"; DS9: "Sons of Mogh")

The Banea punished murderers by forcing them to relive their victim's last moments every fourteen hours; this was done by inserting the memory engrams of the victim into their brain. Tom Paris' reaction to this method showed that it harmed the human brain. (VOY: "Ex Post Facto")

The Doctor conducted biomolecular scans of Tom Paris and B'Elanna Torres following their exhibiting odd behavior, performing actions while on duty aboard the USS Voyager but claiming to know nothing about them. He discovered that during these incidents, a different memory pattern was present in place of their normal engrams, which he believed to be an entirely different brain wave pattern superimposed over their own. (VOY: "Cathexis")

The Mari sought out memory engrams that contained the memories of violent thoughts. The Mari then removed those engrams, because having violent thoughts was a crime on their world. This procedure was known as an engramatic purge. (VOY: "Random Thoughts")

The Quarren edited the memory engrams of humanoids they captured in order to gather workers for their homeworld of Quarra. (VOY: "Workforce", "Workforce, Part II")

In 2375, several of Data's memory engrams were damaged after he was shot by a Son'a weapon on the Ba'ku planet. This caused the activation of his memory loss fail-safe system. Later, on board the USS Enterprise-E, Geordi La Forge replaced them. When Data was reactivated, his first inquiry was pertaining to the missing engrams. (Star Trek: Insurrection)

In an alternate 2379, Kes had lost over ninety-nine percent of her memory engrams due to the effect of the morilogium. After being sent back in time a few weeks due to a side-effect of The Doctor's bio-temporal chamber, she had lost over ninety-eight percent of the engrams. After yet another such time-shift, to her ninth birthday, the amount was reported as over ninety-five percent. (VOY: "Before and After")

In the 29th century, Lieutenant Ducane explained that because Kathryn Janeway and Seven of Nine were never transported into their relative futures, their memory engrams would not require re-sequencing. (VOY: "Relativity")

See also

External link