Difference between revisions of "MemoryFormation"

From aHuman Wiki
Jump to: navigation, search
(Automated page entry using MWPush.pl)
(No difference)

Revision as of 01:27, 16 June 2015

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 [[1]]:

  • *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