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Since it was discovered that hippocampus plays a vital role in human memory, enormous investigations on brain memory have been carried out in the last a few decades. However, so far, there has been no report demonstrating how and in what form that the memory is encoded, stored and retrieved. In this paper, we propose a holographic model with theoretical analysis to describe the mechanism of memory encoding, storage and retrieval in brain. The model suggests that memory encoding in brain is achieved through the process of hologram generation in synapses via the interference of the signal wave carrying the outside information and the energy wave emitted by neurons of hippocampus. The holograms are formed by modulated synapses with the structures of the interference patterns. In memory retrieval process, hippocampus emits the same energy wave as that used for encoding with consciousness to induce the reconstruction of the signal wave from the hologram. Experiment was carried out to simulate hologram encoding and retrieval. The discussion presented in the paper shows that the proposed model can reasonably explain some phenomena related to brain memory.
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