Difference between revisions of "MemoryFormation"

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<pre style="color: green">Memory Formation Research</pre>
 
<pre style="color: green">Memory Formation Research</pre>
 
@@[[Home]] -> [[NeoCortexResearch]] -> [[MemoryFormation]]
 
@@[[Home]] -> [[NeoCortexResearch]] -> [[MemoryFormation]]
  
http://ahuman.googlecode.com/svn/images/wiki/research/htm-research.jpg
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== Terms ==
 
== Terms ==
  
* *short-term memory* - lasts for max 18 seconds
+
* '''short-term memory''' - lasts for max 18 seconds
* *long-term memory* - lasts for day or years (undergo forgetting process) - declarative and procedural
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* '''long-term memory''' - lasts for day or years (undergo forgetting process) - declarative and procedural
* *declarative memory* - all memories that are consciously available - episodic and semantic
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* '''declarative memory''' - all memories that are consciously available - episodic and semantic
* *episodic memory* - memory for specific events in time
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* '''episodic memory''' - memory for specific events in time
* *semantic memory* - knowledge about the external world
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* '''semantic memory''' - knowledge about the external world
* *procedural memory* - how to perform certain motor behaviour
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* '''procedural memory''' - how to perform certain motor behaviour
  
 
== Long-term memory (LTM) ==
 
== Long-term memory (LTM) ==
  
as per [[http://en.wikipedia.org/wiki/Long-term_memory|Wikipedia]]:
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as per [http://en.wikipedia.org/wiki/Long-term_memory Wikipedia]:
* *declarative memory* - encoded by hippocampus (also by enthorinal and perirhinal) but consolidated somewhere else - probably in temporal cortex
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* '''declarative memory''' - encoded by hippocampus (also by enthorinal and perirhinal) but consolidated somewhere else - probably in temporal cortex
* *procedural memory* - encoded and probably stored in cerebellum / striatum
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* '''procedural memory''' - encoded and probably stored in cerebellum / striatum
* *emotional memory* - related to amygdala
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* '''emotional memory''' - related to amygdala
  
 
== Sensory Neocortex ==
 
== Sensory Neocortex ==
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* do we have short-term memory in neocortex?
 
* do we have short-term memory in neocortex?
  
*Current Understanding*:
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'''Current Understanding''':
 
* information is supplied by discrete events (not as ongoing flow) - e.g. saccades, which supply fragmentary information to visual neocortex 3 times per second
 
* information is supplied by discrete events (not as ongoing flow) - e.g. saccades, which supply fragmentary information to visual neocortex 3 times per second
 
* neocortex holds generalization structures, averaged perceived information, not episodic memory
 
* neocortex holds generalization structures, averaged perceived information, not episodic memory
 
* association cortex and frontal cortex (holds feelings) supply feedback via cingulate gyrus to sensory cortex and hippocampus
 
* association cortex and frontal cortex (holds feelings) supply feedback via cingulate gyrus to sensory cortex and hippocampus
* associations and emotionally stressed data are stored easier
+
** associations and emotionally stressed data are stored easier
 
* temporal cortex (TC) lies between visual sensory cortex (VC) and hippocampus (HC)
 
* temporal cortex (TC) lies between visual sensory cortex (VC) and hippocampus (HC)
* LTM is not stored by hippocampus, but hippocampus is absolutely required to create LTM as per HM patient
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** LTM is not stored by hippocampus, but hippocampus is absolutely required to create LTM as per HM patient
* hippocampus is not required to keep short-term memory (18 seconds)
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** hippocampus is not required to keep short-term memory (18 seconds)
* most appropriate place for LTM is temporal cortex
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** most appropriate place for LTM is temporal cortex
* VC perceives primary sensory information and transforms to stable internal representation
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** VC perceives primary sensory information and transforms to stable internal representation
* VC -> TC flow supplies flow of internal representations, or signal of inability to recognize/predict; TC -> VC is unclear
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** VC -> TC flow supplies flow of internal representations, or signal of inability to recognize/predict; TC -> VC is unclear
* HC -> TC flow represents control of memorising by hippocampus
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** HC -> TC flow represents control of memorising by hippocampus

Latest revision as of 19:07, 28 November 2018

Memory Formation Research

@@Home -> NeoCortexResearch -> MemoryFormation

htm-research.jpg


Memory Prediction research covers using HTM/Memory Prediction theory for memorizing and recognizing complex patterns, produce internal representation.

Terms

  • short-term memory - lasts for max 18 seconds
  • long-term memory - lasts for day or years (undergo forgetting process) - declarative and procedural
  • declarative memory - all memories that are consciously available - episodic and semantic
  • episodic memory - memory for specific events in time
  • semantic memory - knowledge about the external world
  • procedural memory - how to perform certain motor behaviour

Long-term memory (LTM)

as per Wikipedia:

  • declarative memory - encoded by hippocampus (also by enthorinal and perirhinal) but consolidated somewhere else - probably in temporal cortex
  • procedural memory - encoded and probably stored in cerebellum / striatum
  • emotional memory - related to amygdala

Sensory Neocortex

  • recognize and predict functions, as per Jeff Hawkins
  • long-term memory formation by hippocampus - how it is related to neocortex?
  • do we have short-term memory in neocortex?

Current Understanding:

  • information is supplied by discrete events (not as ongoing flow) - e.g. saccades, which supply fragmentary information to visual neocortex 3 times per second
  • neocortex holds generalization structures, averaged perceived information, not episodic memory
  • association cortex and frontal cortex (holds feelings) supply feedback via cingulate gyrus to sensory cortex and hippocampus
    • associations and emotionally stressed data are stored easier
  • temporal cortex (TC) lies between visual sensory cortex (VC) and hippocampus (HC)
    • LTM is not stored by hippocampus, but hippocampus is absolutely required to create LTM as per HM patient
    • hippocampus is not required to keep short-term memory (18 seconds)
    • most appropriate place for LTM is temporal cortex
    • VC perceives primary sensory information and transforms to stable internal representation
    • VC -> TC flow supplies flow of internal representations, or signal of inability to recognize/predict; TC -> VC is unclear
    • HC -> TC flow represents control of memorising by hippocampus