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Two main frontal areas have been implicated in the dream process. The first involves the deep white matter of the frontal lobes (just above the eyes). The main systems at work here involve the mesolimbic and mesocortical dopaminergic pathways. There are connecting fibres that run between frontal and limbic structures.
Dreams are successions of images, ideas, emotions, and sensations that occur involuntarily in the mind during certain stages of sleep (mainly the REM stage). The content and purpose of dreams are not yet clearly understood though various theories have been proposed. The scientific study of dreams is called oneirology.
The differences in neuronal activity of the brainstem during waking and REM sleep were observed, and the hypothesis proposes that dreams result from brain activation during REM sleep. [1] Since then, the hypothesis has undergone an evolution as technology and experimental equipment has become more precise.
A little over half the population has experienced a lucid dream at least once in their lives, according to a 2017 study, and about 20 percent of individuals experience lucid dreams at least once a ...
The uncinate fasciculus is a bi-directional pathway between the temporal lobe and frontal lobe; it is traditionally considered to be part of the limbic system. [2] It has been proposed that the uncinate fasciculus allows mnemonic representations stored in the temporal lobe to interact with and guide decision making in the frontal lobe. [4]
The hippocampus (pl.: hippocampi; via Latin from Greek ἱππόκαμπος, 'seahorse') is a major component of the brain of humans and other vertebrates.The hippocampus is part of the limbic system, and plays important roles in the consolidation of information from short-term memory to long-term memory, and in spatial memory that enables navigation.
It was found that upon awakening the visual area, frontal cortex, limbic lobe were activated (in the intense activation phase) and the frontal cortex, temporal cortex, primary motor area, and insula were activated (in the post abrupt awakening phase). Therefore, the study concluded that decision-making was not activated immediately upon waking ...
It was initially thought that NREM sleep is the absence of dreaming, or dreams occur more rarely compared to REM sleep because 90–95% of those who wake up in the middle of REM sleep will report that they have had a dream, but only 5–10% of those waking up in the middle of non-REM sleep will report they've had a dream. [14]