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A serotonin pathway identifies aggregate projections from neurons which synthesize and communicate the monoamine neurotransmitter serotonin. [ citation needed ] These pathways are relevant to different psychiatric and neurological disorders.
Serotonin (/ ˌ s ɛr ə ˈ t oʊ n ɪ n, ˌ s ɪər ə-/) [6] [7] [8] or 5-hydroxytryptamine (5-HT) is a monoamine neurotransmitter.Its biological function is complex, touching on diverse functions including mood, cognition, reward, learning, memory, and numerous physiological processes such as vomiting and vasoconstriction.
It functions to regulate appetite, sleep, memory and learning, temperature, mood, behaviour, muscle contraction, and the functions of the cardiovascular system and endocrine system. It is speculated to have a role in depression , as some depressed patients have been reported to exhibit lower concentrations of metabolites of serotonin in their ...
Memory encoding strength derived from higher levels-of-processing appears to be conserved despite other losses in memory function with age. Several studies show that, in older individuals, the ability to process semantically in contrast with non-semantically is improved by this disparity.
According to the Atkinson-Shiffrin memory model or multi-store model, for information to be firmly implanted in memory it must pass through three stages of mental processing: sensory memory, short-term memory, and long-term memory. [7] An example of this is the working memory model.
Serotonin Is Released Another part of this sexy equation is serotonin—a neurotransmitter and hormone, commonly referred to as the “happy chemical,” that plays a role in regulating mood.
[1] There are two steps to the encoding process: "acquisition" and "consolidation". During the acquisition process, stimuli are committed to short term memory. [ 1 ] Then, consolidation is where the hippocampus along with other cortical structures stabilize an object within long term memory, which strengthens over time, and is a process for ...
Lesions large enough to stop REM completely can also render the subject unconscious. [10] Supporting evidence did come from the flip-side of clinico-anatomical correlations however. In a compilation of all reported cases of dream cessation (111 cases in all) damage was located in an entirely different area of the brain than the brain stem. [ 10 ]