User:Thedragonwarrior9/Long-term memory

The leading section of this could use some work. It feels too short and doesn't do a good job of summarizing the main points of the article. The final section, "Single store memory model" seems like it would fit in more with the section "Unitary model".

Leading section
'''Long-term memory (LTM) is the stage of the Atkinson–Shiffrin memory model in which informative knowledge is held indefinitely. It is defined in contrast to sensory memory, the initial stage, and short-term or working memory, the second stage, which persists for about 18 to 30 seconds. LTM is grouped into two categories known as explicit memory (declarative memory) and implicit memory (non-declarative memory). Explicit memory is broken down into episodic and semantic memory, while implicit memory includes procedural memory and emotional conditioning.'''

REWORDED LEADING SECTION

Atkinson–Shiffrin memory model[edit]
According to the dual store memory model proposed in 1968 by Richard C. Atkinson and Richard Shiffrin, memories can reside in the short-term "buffer" for a limited time while they are simultaneously strengthening their associations in LTM. <-  ADDED CITATION

Summary of info from source
The source gives background information on the research done by Atkinson and Shiffrin in 1968. It also discusses the specific principles and mathematics used that aided in their scientific discoveries.