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Three human disorders-fragile X syndrome,myotonic dystrophy,and Huntington disease-are conceptually linked by a common mode of molecular upset.Describe the phenomena that link these disorders.
NREM Sleep
Non-Rapid Eye Movement sleep, characterized by slower brain waves, which is divided into three stages and accounts for 75-80% of total sleep time.
Ascending Fibres
Nerve fibers that carry information from the body's sensory receptors upward to the brain, particularly pertinent to the sensory pathways.
Reticular Activating System
A network of neurons located in the brainstem that plays a central role in regulating wakefulness and sleep-wake transitions.
REM Sleep
A stage of sleep characterized by rapid eye movement, vivid dreams, and increased brain activity.
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