Neurophysiologic Processes of Memory in Dreams

Abstract

Most times people wonder why it is necessary to remember their dreams after a long sleep and why they see the things often thought about, in the dreams. It is the oldest neuronal process which has been in existence since the origin of mankind. The human brain memory is the brain vital function which gives human the ability to make plans. The implication of the memory in dreams can be attributed from life instances and experiences, some of which can be integrated from short term memory to long term memory. So many articles have proven that dreams can be noticed more in REM sleep which involves the activation of the neural activity in the brain stem, thalamus, amygdala, and extrastriate temporo-occipital cortices while other structures such as the dorsolateral prefrontal cortex and the precuneus are inactive during REM sleep where dream is most common. The Lucid dream consciousness occurs when the precuneus, the medial prefrontal cortex, the dorsolateral prefrontal cortex and intra-parietal sulcus, are active at the same time which involves the activity of stored information in the brain memory. The dopamine and norepinephrine boosts focus, increases the ability to connect and integrate information, and facilitates pattern recognition and problem solving. It might also enhance the ability to recall details and memories from waking life while within the dream. The selective bilateral hippocampal lesions can have an impact in memory role during dream process. The essence of memory is for decision making, plans for the future and maintaining personality even while dreaming. This article aims to explain the neural role of the brain memory activation while dreaming, which is based on different ground breaking research of dreams, sleep and memory.