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The characteristics of REM sleep consistently contain a similar set of features. While dreaming, people regularly falsely believe that they are awake unless they implement lucidity. Dreams contain multimodal pseudo-perceptions; sometimes any or all sensory modalities are present, but most often visual and motoric. [9]
Dreams have a foresight function, enabling us to find a way out of an immediate conflict. [I 2] To reduce the polysemy of the term, Jung sometimes speaks of the "intuitive function" of dreams. [G 3] This prospective function is not in fact a premonitory dream, but teaches the dreamer a path to follow. [2]
This prevents dreams from resulting in dangerous movements of the body. [8] [9] Animals have complex dreams and are able to retain and recall long sequences of events while they are asleep. [10] [11] Studies show that various species of mammals and birds experience REM during sleep, [12] and follow the same series of sleeping states as humans. [10]
Some researchers argue that the perpetuation of a complex brain process such as REM sleep indicates that it serves an important function for the survival of mammalian and avian species. It fulfills important physiological needs vital for survival to the extent that prolonged REM sleep deprivation leads to death in experimental animals.
A dream has all features of primary consciousness but is produced in the brain without external stimulation. Unlike the waking state, the brain cannot recognize its own condition; that it is in the midst of the dream and is not the same as the real world. [1]
Most modern dream study focuses on the neurophysiology of dreams and on proposing and testing hypotheses regarding dream function. It is not known where in the brain dreams originate, if there is a single origin for dreams or if multiple regions of the brain are involved, or what the purpose of dreaming is for the body or mind.
Consisting of the central nervous system (CNS), which includes the brain and spinal cord, and the peripheral nervous system (PNS), which extends throughout the rest of the body, this system is responsible for transmitting signals between different parts of the body and facilitating the coordination of various physiological functions. Neurons ...
People have proposed many hypotheses about the functions of dreaming. Sigmund Freud postulated that dreams are the symbolic expression of frustrated desires that have been relegated to the unconscious mind , and he used dream interpretation in the form of psychoanalysis in attempting to uncover these desires.