**The Addictive Brain** | **Your Brain on Drugs**

Discover the neural mechanisms that underlie the behaviors of addiction. This course includes watching a lecture followed by a group discussion moderated by the facilitator.

Shift your attention from the nature of addiction to the nature of drugs. Here you’ll delve into the process of neurochemical transmission and see how drugs mimic this activity by binding to neural receptors. This process is responsible for everything from a drug’s physical and psychological effects to its potency.

**DISCUSSION QUESTIONS**

1. How can a lock-and-key analogy be used to explain how psychoactive drugs have their effects?

2. What is the difference between a drug’s potency and its efficacy, and what factors influence each?

3. How can the same dose of a drug produce less and less of an effect over time?