"Short-term memory is mainly related to the activity of neurons and the connection between neurons, especially in the hippocampus under the cerebral cortex. Long-term memory may be related to the establishment of new synapses. "

Memory is as fleeting as the brain structure that keeps it. If the synapses between neurons are destroyed, the memory stored through the synaptic connection network will disappear.

Scientists in these laboratories generally believe that memory is still mysterious, so it is still under study, especially the memory of early embryos and the memory forgetting of babies.

Synapse is a functional connection between neurons and a key part of information transmission. Under the optical microscope, it can be seen that the axon end of a neuron passes through many branches, and finally the end of each small branch expands into a cup or a ball, which is called a synaptosome. These synaptosomes can contact with the cell bodies or dendrites of multiple neurons to form synapses.

Extended data:

The transmission of nerve impulses between neurons is unidirectional, that is, nerve impulses can only be transmitted from the axon of one neuron to the cell body or dendrite of another neuron, but not in the opposite direction. This is because transmitters are only released at the axonal endings of presynaptic neurons.

When nerve impulses are transmitted to synaptosomes through axons, the permeability of presynaptic membrane to calcium ions increases, and calcium ions in synaptic gaps enter synaptic vesicles, which promotes the close integration of synaptic vesicles and presynaptic membrane and leads to rupture.

The transmitter in the vesicle is released into the synaptic cleft and diffuses to the postsynaptic membrane, and immediately binds to the protein receptor on the postsynaptic membrane, which changes the permeability of the postsynaptic membrane to ions and causes excitatory or inhibitory changes of the postsynaptic membrane. Here, the transmitter plays the role of transmitting information.

The materials that have been memorized can't be recalled or recognized, or there are mistakes in memory and recognition. According to the viewpoint of information processing, the forgetting process exists in different stages of memory. Forgetting is basically a normal and reasonable psychological phenomenon. Because there is no need to remember everything you perceive; The importance of memory materials is time-sensitive; It is necessary for people's mental health and normal life.

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