Swatkat Posted April 3, 2022 Author Report Share Posted April 3, 2022 40 minutes ago, siva604 said: Animal studies suggest the existence of at least one central reward-reinforcement pathway for drug self-administration in the human brain. The stimulant-reward system (top) directly influences the neurons using dopamine that connect from the ventral tegmental area (VTA) to the nucleus accumbens (NA) and thereafter to the frontal cortex. The opioid system (middle) appears to involve structures such as the periaqueductal gray area, arcuate nucleus, amygdala and locus coeruleus, which use peptides that mimic the action of drugs such as heroin and morphine and indirectly influence the NA in a manner similar to that of stimulants. Alcohol and other sedative-hypnotics (bottom) also indirectly affect the VTA-NA reward system. This effect is mediated by GABA receptors, which are distributed widely and which influence the central dopaminergic reward system through mechanisms that include opioid pathways. (Adapted from Brain concepts: drugs and the brain. Washington, DC: Society for Neuroscience, 1992.) Thanks bro Quote Link to comment Share on other sites More sharing options...
Starblazer Posted April 3, 2022 Report Share Posted April 3, 2022 Avanni life lo higher purpose leni vaallu chestaru Quote Link to comment Share on other sites More sharing options...
Midnightsun Posted April 3, 2022 Report Share Posted April 3, 2022 2 minutes ago, Starblazer said: Avanni life lo higher purpose leni vaallu chestaru Rebirth?? Of soul intha deep concept ardam avvalante mamulu manushulaki kastam Quote Link to comment Share on other sites More sharing options...
Starblazer Posted April 3, 2022 Report Share Posted April 3, 2022 5 minutes ago, Midnightsun said: Rebirth?? Of soul intha deep concept ardam avvalante mamulu manushulaki kastam Ekkado vere db lo ivvalsina reply ikkada ichavanukunta 😂 Quote Link to comment Share on other sites More sharing options...
Midnightsun Posted April 3, 2022 Report Share Posted April 3, 2022 2 minutes ago, Starblazer said: Ekkado vere db lo ivvalsina reply ikkada ichavanukunta 😂 Ok Quote Link to comment Share on other sites More sharing options...
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