How does memory work?

In class we have been talking about memory and how it works. I have read a text by ScienceDaily about memory and here is what I have learnt.

New Vocabulary

neurotransmitter- a chemical substance that is released by a nerve fibre which allows signals to travel across.

long-term potentiation- long lasting strength of synapses between nerve cells.

Cognitive- process of gaining knowledge

deteriorate- to wear away

impairment- being weakened

Summary

Memory is created when the neurons communicate through synaptic connection with each other when neurotransmitter are there. However, they only connect when they get the same stimulus from the same neurotransmitter. The strength can vary which changes the how strong the memory is formed. A memory is created if the long term potentiation(LTP) is sustained. This happens when each nerve cells talk to each other at an elevated rate. The brain starts to lose it’s memory when the neurons start to decrease and don’t connect as much as they used to before. This is just like our muscles in the body. When we don’t use the muscles for a very long time they start to gradually lose their strength and weaken their strength.

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