In a recent study published in Nature Communications, scientists have discovered how different drug administration methods affect brain function and the experience of drug reward. The findings are vital in unraveling the complex mechanisms behind drug addiction and in developing targeted interventions for substance use disorders. Previous research has long established the connection between dopamine, a key neurotransmitter in the brain, and its role in the rewarding effects of drugs. This connection is a crucial factor in the development of addiction. However, there was a gap in understanding …