Question

where are memories stored in thr brain, and by what cellular and molecular mechanism?

(please expalin it in detail and in easy words)

Answer 1

The hippocampus

it is located in the brain's temporal lobe, is where episodic memories are formed and indexed for later access.

The brain stores memories in two ways. Short-term and long term memories.

Short term-Things which are not unique like a car color on highway you will never recall it because its normal

Short-term recollection is translated into long-term memory in the hippocampus, an area in the deeper brain. According to McGills , the hippocampus takes simultaneous memories from different sensory regions of the brain and connects them into a single "episode" of memory, for example, you may haveone memory of a dinner party rather than multiple separate memories of how the party looked, sounded , and smelled.

According to McGill, as memories are played through the hippocampus, the connections between neurons associated with a memory eventually become a fixed combination, so that if you hear a piece of music for example, you are likely to be flooded with other memories you associate with a certain episode where you heard that same music.

The hippocampus helps to solidify the pattern of connections that form a memory, but the memory itself depends on the solidity of the connections between individual brain cells, according to research from McGill and from New York University.

In turn, the cells of the brain depend on proteins and other chemicals to maintain their connections to each other and to communicate with one another. Scientists at NYU, the Medical College of Georgia and elsewhere have shown with experiments in animals that removing or changing just a single chemical or molecule can prevent the formation of memories, or even destroy memories that already exist.