PSYCHOLOGY OF EMOTIONS

Detailed explanation-1: -Drugs that bind to neurotransmitter receptors, mimicking the activity of a neurotransmitter chemical binding to the receptor, are called agonists. Antagonist drugs block a chemical response at a neurotransmitter receptor.

Detailed explanation-2: -Neurotransmitter antagonists refer to drugs/medications that decrease the effect of a neurotransmitter by either blocking neurotransmitter receptor sites, increasing neurotransmitter removal from nerve synapses, or decreasing the production of neurotransmitters.

Detailed explanation-3: -MDMA and methamphetamine The drug affects three neurotransmitters in the brain: serotonin, dopamine, and norepinephrine (or noradrenaline). When the drug enters the brain, it leads to these neurotransmitters being released from their synaptic vesicles in neurons. This results in increased neurotransmitter activity.

Detailed explanation-4: -Some psychoactive substances are able to mimic the effects of neurotransmitters. Others interfere with normal brain function by blocking it, or by altering the way neurotransmitters are stored, released, and removed.