There are 5 types of dopamine receptors in humans.
The "D2-like" group of dopamine receptors are classified together based on structure but not drug sensitivity.
This gene is associated with a dopamine receptor in the brain.
These medications work by blocking dopamine receptors, and are associated with a high side effect profile.
He said there was ancillary support for the association between the dopamine receptor and novelty-seeking behavior.
The D subtype is the most abundant dopamine receptor in the central nervous system.
Studies also show a simultaneous decrease in the number of dopamine receptors created.
They also show gene expression for dopamine receptors and transporters.
So a high number of dopamine receptors may result in a natural aversion to drug use.
But other scientists are testing the notion that particular types of dopamine receptors - five have been identified - may be the culprits.