Principles of brain memory

From childhood to adulthood, a lot of what we learn in school is a test of memory. Especially for students of liberal arts, memorizing books and reciting exams are commonplace. But some people also have a lot of troubles. Why can others memorize things very quickly and even remember everything they see, while it is extremely difficult for them to memorize things? In fact, this requires understanding the principles of brain memory.

The brain is made up of several areas: gray matter, white matter, and cerebral cortex. Gray matter and white matter are the media for processing special nerve impulses in the brain, which will not be explained here; the cerebral cortex is formed by thousands of neurons through complex interconnections (the composition of neurons should have been learned in high school), and the cerebral cortex is the main area of ​​the human brain that processes various information and instructions. According to functional areas, the cerebral cortex is divided into many parts, such as the visual processing center, language processing center, auditory processing center, tactile processing center, etc. Among them, the area responsible for memory activities is called the "hippocampus".

The hippocampus is the area of ​​the brain that helps humans process long-term learning and memory of events such as sound, light, and taste, and performs the so-called "narrative memory" function. In medicine, the "hippocampus" is an inward fold area of ​​the cerebral cortex, forming an arched bulge around the "choroidal fissure" at the bottom of the "lateral ventricle". It is composed of two fan-shaped parts, which are sometimes collectively referred to as the hippocampal structure.

In this area, the operating mechanism of memory is mainly: the synapses of nerve cells in the area are mainly responsible for storing memories, and the hippocampus acts as a conversion station in the process of memory. When neurons in the cerebral cortex receive various sensory or perceptual information, they transmit the information to the hippocampus. If the hippocampus responds, neurons begin to form lasting networks, but if the recognized pattern is not met, the experience disappears without a trace. Once the brain is stimulated and receives an instruction to retrieve long-term memory (as defined by Apple), the hippocampus will automatically filter the information instruction, and the area storing the information instruction will be connected, and then transmitted in the form of nerve impulses, and finally manifested in various forms of human activities.