Search results
Results from the WOW.Com Content Network
Several theories concerning the biologically based cause of depression have been suggested over the years, including theories revolving around monoamine neurotransmitters, neuroplasticity, neurogenesis, inflammation and the circadian rhythm. Physical illnesses, including hypothyroidism and mitochondrial disease, can also trigger depressive ...
Anhedonia is a diverse array of deficits in hedonic function, including reduced motivation or ability to experience pleasure. [1] While earlier definitions emphasized the inability to experience pleasure, anhedonia is currently used by researchers to refer to reduced motivation, reduced anticipatory pleasure (wanting), reduced consummatory pleasure (liking), and deficits in reinforcement learning.
LTD has also been found to occur in different types of neurons that release various neurotransmitters, however, the most common neurotransmitter involved in LTD is L-glutamate. L-glutamate acts on the N-methyl-D- aspartate receptors ( NMDARs ), α-amino-3-hydroxy-5-methylisoxazole-4-propionic acid receptors ( AMPARs ), kainate receptors ( KARs ...
On some conceptions, happiness is identified with "the individual's balance of pleasant over unpleasant experience". [11] Life satisfaction theories, on the other hand, hold that happiness involves having the right attitude towards one's life as a whole. Pleasure may have a role to play in this attitude, but it is not identical to happiness. [11]
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.
The reward system (the mesocorticolimbic circuit) is a group of neural structures responsible for incentive salience (i.e., "wanting"; desire or craving for a reward and motivation), associative learning (primarily positive reinforcement and classical conditioning), and positively-valenced emotions, particularly ones involving pleasure as a core component (e.g., joy, euphoria and ecstasy).
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. As luck would have it ...
Methylphenidate, one of the most widely used NDRIs.. A norepinephrine–dopamine reuptake inhibitor (NDRI) is a type of drug that inhibits the reuptake of the monoamine neurotransmitters norepinephrine and dopamine and thereby increases extracellular levels of these neurotransmitters and noradrenergic and dopaminergic neurotransmission. [1]