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Research into dreams includes exploration of the mechanisms of dreaming, the influences on dreaming, and disorders linked to dreaming. Work in oneirology overlaps with neurology and can vary from quantifying dreams to analyzing brain waves during dreaming, to studying the effects of drugs and neurotransmitters on sleeping or dreaming. Though ...
This includes the activation synthesis theory—the theory that dreams result from brain stem activation during REM sleep; the continual activation theory—the theory that dreaming is a result of activation and synthesis but dreams and REM sleep are controlled by different structures in the brain; and dreams as excitations of long-term memory ...
Their model posits that dreams are actively generated by the brain stem and then passively synthesized by the forebrain. That is, the cholinergic activation that occurs in any forebrain areas (via transmission from brain stem) results in attempts by the brain's cognitive areas to enforce sense or structure onto meaningless activation. [10]
The effects of the brain activity can interfere with the REM (rapid eye movement) part of sleep, where the majority of dreams and nightmares occur, which is around 90 minutes into sleep. REM is ...
Some dreams even enable the body to express feverish or sickly states, and herald future biological disorders. Dreams can in fact have somatic causes, a fact which, as Jung points out, has long been recognized by traditional and shamanic medicine and, more recently, by experimental psychology. Similarly, certain physical and environmental ...
The tube in (A) and the pigtail in (B) are marked with white arrows. [ 1 ] A nephrostomy or percutaneous nephrostomy is an artificial opening created between the kidney and the skin which allows for the urinary diversion directly from the upper part of the urinary system ( renal pelvis ). [ 2 ]
In the developing chordate (including vertebrates), the neural tube is the embryonic precursor to the central nervous system, which is made up of the brain and spinal cord. The neural groove gradually deepens as the neural folds become elevated, and ultimately the folds meet and coalesce in the middle line and convert the groove into the closed ...
The core body and brain temperatures increase during REM sleep and skin temperature decreases to lowest values. [1] The REM phase is also known as paradoxical sleep (PS) and sometimes desynchronized sleep or dreamy sleep, [2] because of physiological similarities to waking states including rapid, low-voltage desynchronized brain waves.