Wednesday, August 17, 2016

Hippocampus short term memory

How does the hippocampus affect your memory? What part of the brain is short term memory found in? What are the symptoms of damage to the hippocampus?


Scientists are unsure exactly how this occurs. In particular, the hippocampus seems to play a major role in declarative memory , the type of memory involving things that can be purposely recalle. Like the cerebral cortex, with which it is closely associate it is a paired structure, with mirror-image halves in the left and right sides of the brain.

The hippocampus is a major component of the limbic system in the brains of humans and other vertebrates. Nonetheless, the hippocampus may be specialized for allocentric topographical processing which impacts on short-term memory or even perception. These stages need not occur successively, but are, as studies indicate, broadly divided in the neuronal mechanisms they require or even in the hippocampal areas they activate. This doesn’t mean that memories are themselves stored in the hippocampus for the long term.


Instea it is believed that the hippocampus acts as something of a shipping center, taking in information, registering it, and temporarily storing it before shipping it off to be filed and stored in long-term memory. If you didn’t have it, you couldn’t live in the present: you’d be stuck in the past of old memories. And this is common: Alzheimer’s disease affects the hippocampus first and severely, before other parts of the cortex (later, the frontal lobes too).


The culprit involved with short - term memory challenges and PTSD is the hippocampus.

These regions form the trilaminar loop, which is the processing center of long- term memory. Hippocampus is divided into three regions: CA CA and CA3. Long- term potentiation (LTP), which is a form of neural plasticity, occurs in the hippocampus , and LPT is a vital brain mechanism involved in memory storage. Our long-term memory is consolidated when we sleep. Short-term memory traces in the hippocampus, an area deep in the brain, are then relocated to more outer parts of the brain.


Information regarding an event is not instantaneously stored in long- term memory. Instea sensory details from the event are slowly assimilated into long- term storage over time through the process of consolidation. Episodic memories are autobiographical memories from specific events in our lives, like the coffee we had with a friend last week. Andrew Meldrum, I am a dyslexic person who has done a lot of reading and thinking on the subject of memory recall.


Is it therefore then possible to stimulate the hippocampus so that short - term learned facts can go (faster). It creates a memory and then somehow directs the brain where to file it”. It also seems able to create directions or index that allow the individual to access that information in the future. In turn, the cells of the brain depend on proteins and other chemicals.


It has many important functions. However, the single most important one is a memory. More precisely, it transfers the data from the short-term into long-term memory. As a result, damage to the hippocampus often in memory loss, inability to form new memories, and Alzheimer’s disease.


In recent studies, left-right anatomical and functional differences of the rodent hippocampus have been revealed.

It is here where impressions such as smell, touch, acoustic information and visual input are interlinked and stored on a short term basis. When large amounts of information are given, short - term memory usually remembers the first set of unrehearsed information (primacy) or the last set of unrehearsed information (recency), but few things from the middle. The prefrontal cortex, parietal lobe, and hippocampus are brain structures attributed to memory. This transfer of information happens during waking hours, too, as well as NREM sleep.


Hormones and proteins that protect and repair brain cells and stimulate neural growth also decline with age.

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