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![]() ![]() How Does Sleep Deprivation Affect Brain Function and Memory? The thalamus is largely inactive during NREM stages, but when REM sleep begins, it will relay images, sounds, and other sensations to the cerebral cortex that are then integrated into your dreams. The thalamus of the brain transmits cues from your five senses to the cerebral cortex, a thin layer of the cerebrum that interprets and processes information from your memories. Emotional memories are also processed in the REM stage, which can help you cope with difficult experiences. These selected memories will become more concrete as deep NREM sleep begins, and this process will continue during REM sleep. Not sleeping or getting enough sleep can lower your learning abilities by as much as 40%.ĭuring these NREM stages, the brain also sorts through your various memories from the previous day, filtering out important memories and eliminating other information. These three stages prepare your brain to learn new information the following day. The first two stages are considered light NREM sleep, and the third is deep (or “slow-wave”) NREM sleep. Getting enough rest helps you process new information once you wake up, and sleeping after learning can consolidate this information into memories, allowing you to store them in your brain.Ī healthy adult’s sleep cycle consists of four distinct stages. Sleep and memory share a complex relationship. ![]() ![]() A good night’s rest not only promotes good physical health but also enables our brains to function properly, so getting the recommended amount of sleep each night is key to consolidating memories. Recent studies also suggest that insufficient and excessive sleep can affect memory processing and other cognitive processes. The general consensus today is that memory consolidation – the process of preserving key memories and discarding excessive information – takes place during both the non-rapid eye movement (NREM) and rapid eye movement (REM) stages of your sleep cycle. Scientists and researchers have studied the relationship between memory and sleep for more than 100 years. ![]() |
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