Brain Mechanism of Memory and Psychiatry

Lee, Sung Hoon

Abstract

The function of memory plays an important role in the operation of whole brain function. Memory is related wile almost structures of cortex and subcortex in order to perform this purpose. Therefore, it is very important to study the brain mechanism of memory understanding not only the function of memory also general processing of brain information or brain function. Longterm memory is encoded in the neuronal connectivities of the brain. The most successful models of human memory in their operations are the models of distributed and self organized associative memory, which are founded in the principle of simulaneous convergence in network formation. Memory is not perceived as the qualities inherent in physical objects or events, but as a set of ralations previously established in a neural net by simultaneousy occurring experiences. When it is easily found any correlation with existing neural networks through analysis of network structures, memory is automatically encoded in cerebral cortex. However, in the emergence of informations which are complicated to classify and correlated with existing networks, and conflictual with other networks, those informations are sent to the subcortex including hippocampus. Memory is stored in the form of templates distributed across several different cortical regions. The hippocampus provides detailed maps far the conjoint binding and calling up of widely distributed informations. With a large of knowledges about the distribution of correlated networks, they find the most correlated networks and transform the existing networks into new one. Then hippocampus consolidats new farmed network. Amygdala may enable the emotions to influence the information processing and memory as well as providing the visceral informations to them. Cortico-striatal-pallido-thalamo-cortical loop also play an important role in memory function with analysis of language and concept. In case of difficulty of processing in spite of parallel process of informations, frontal lobe organizes theses complicated informations of network analysis through temporal processing. With understanding of brain mechanism of memory and information processing, the brain mechanism of mental phenomena including psychopathology can be conjectured in terms of neurobiology and neruopsychology. Because the psychoanalysis means the memory in unconsciousness in psychoanalysis, the studies of brain mechanism of memory may provide a precise insight to the human mind and it's disorders.