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Memory consolidation was first referred to in the writings of the renowned Roman teacher of rhetoric Quintillian.He noted the "curious fact... that the interval of a single night will greatly increase the strength of the memory," and presented the possibility that "... the power of recollection .. undergoes a process of ripening and maturing during the time which intervenes."
In psychology, multiple trace theory is a memory consolidation model advanced as an alternative model to strength theory.It posits that each time some information is presented to a person, it is neurally encoded in a unique memory trace composed of a combination of its attributes. [1]
DMN was thought to only be active during passive rest and inactive during tasks. However, more recent studies have demonstrated the DMN to be active in certain internal goal-directed tasks such as social working memory and autobiographical tasks. [8] Around 2007, the number of papers referencing the default mode network skyrocketed. [22]
For example, the hippocampus is believed to be involved in spatial and declarative memory, as well as consolidating short-term into long-term memory. Studies have shown that declarative memories move between the limbic system , deep within the brain, and the outer, cortical regions.
An example of this is if you had a truly frightening experience and recall that memory in a less arousing environment, the memory will be weaken the next time it is retrieved. [141] "Some studies suggest that over-trained or strongly reinforced memories do not undergo reconsolidation if reactivated the first few days after training, but do ...
Consolidation of a memory is a process that takes an initially unstable representation and encodes it in a more sturdy, effective and efficient manner. In this new state, the memory is less susceptible to interference. [1] There are essentially three phases of memory consolidation and all are thought to be facilitated by sleep or not sleep:
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For example, if a traumatic memory were erased, a person might still remember related events in their lives, such as their emotional reactions to later experiences. Without the original memory to give them context, these remembered events might prompt the subjects to see themselves as emotional or irrational people. [ 36 ]