STATES OF CONSCIOUSNESS
DREAMS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
decrease the amount of neurotransmitters available in the nervous system
|
|
|
blocks reuptake of dopamine and reduces sensitivity of receptors to dopamine
|
|
|
increase reuptake in the synapse
|
|
|
decrease the sensitivity of the receptors to norepinephrine
|
Detailed explanation-1: -Drugs of abuse can interfere with this normal communication process. For example, cocaine acts by binding to the dopamine transporter, blocking the removal of dopamine from the synapse. Dopamine then accumulates in the synapse to produce an amplified signal to the receiving neurons.
Detailed explanation-2: -Cocaine addiction mainly involves blocking reuptake of dopamine; but noradrenaline and serotonin reuptake are also blocked. This will cause more of the neurotransmitters in synapse and increase response of receptors on the post synaptic membrane.
Detailed explanation-3: -A dopamine reuptake inhibitor (DRI) is a class of drug which acts as a reuptake inhibitor of the monoamine neurotransmitter dopamine by blocking the action of the dopamine transporter (DAT).
Detailed explanation-4: -What is the role of dopamine? Dopamine is responsible for allowing you to feel pleasure, satisfaction and motivation. When you feel good that you have achieved something, it’s because you have a surge of dopamine in the brain.
Detailed explanation-5: -Every substance has slightly different effects on the brain, but all addictive drugs, including alcohol, opioids, and cocaine, produce a pleasurable surge of the neurotransmitter dopamine in a region of the brain called the basal ganglia; neurotransmitters are chemicals that transmit messages between nerve cells.