NEUR 3302 Lecture Notes - Lecture 8: Monoamine Oxidase Inhibitor, Preoptic Area, Stretch Reflex
20 Oct 2016
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Participants more likely to give number following stressor. Excitation and inhibition of sexual behaviour: how do we stop having sex, tipping point- excitation higher than inhibition, physiological/organic. Organs, hormones and nt and genetic exposure: psychosocial/cultural/behavior. Salient cues, willingness to interact, environmental exposure. Alter physiological milieu: main excitatory transmitter: dopamine, main inhibatory transmitter: serotonin. Serotonin (5-ht: raphe nuclei- origin of serotonin neurons. Project to hypothalamus, nucleaus accumbens, cortex, spinal reflex centers: early research implicated serotonin in satiety. Clinical potential for weight loss: serve a similar function in sexual behaviour. Pcpa inhibits production of serotonin: study- male rats castrated: treated with t and pcpa drug. Pcpa has no effect on sex without t. ***t + pcpa= increase in sex behaviour. 5-ht decreases sex behaviour this suggests that serotonin does decrease sexual behaviour. Testosterone also seems to increase dopamine transmission: medial hypo. Test required for mpoa dop release during sex.
