This means that smoking marijuana one or two times can actually have an effect. Martin conducts research on topics related to addiction. He said that people who smoke marijuana oftentimes suffer from amotivational syndrome and don't know it. Amotivational syndrome is defined as a condition in which a person loses ambition or motivation to complete tasks that he or she would normally like to have completed. When people smoke marijuana, it's not totally harmonious.
Amotivational syndrome causes a change in the chemistry of the brain.
People will not immediately say that advertising has an impact on them, but it is apparent that it gets through and that is how we feel about the anti-drug ads. Simon said that the commercial was not only effective but also was well-recognized. Ultimately it provided good persuasive information to try and change attitudes about drug behavior. In our case we are trying to unsell a product, but the basic premise is the same. Pages will open in a new browser window External sites are not endorsed by CNN Interactive.