Music is able to change much of how people act and see the world by affecting the brain. In a study, participants were given pieces of music to listen to and then were asked to perceive neutral faces. Most distinctly, the participants listening to happy music reported that they saw the faces as happy, as well as the participants who listened to sad music perceived the faces as sad. This shows how there is a link between what the brain is listening to and it effecting what is seen. Music also affects the brain in that it helps memory. In 2009, Petr Janata at the University of California, Davis concluded in a study that there is an association with music and memories, and the brain recognizes these memories when matched with the corresponding music. The movie Alive Inside shows this through a patient with Alzheimer’s. He is able to recognize his surroundings and his mood is bettered. The patient’s brain was able to open up because of the familiar music which then allowed the patient to remember more. Ambient noise helps boots creativity. The volume of the music is most effective at a moderate level, as it “gets our creative juices flowing”. even over a low volume. High volumes and lyrical music overwhelm the brain and cause distraction. Baroque music (classical) is some of the best music to keep attention and focus. Stanford School of Medicine provides a study showing that brain activity in participants peaked during the dips in the music where it was quieter. They conclude that it is the anticipation of the next movement in the music that is causing that rise in brain activity. They note that “when something will come next is known, because of the music’s underlying pulse or rhythm, but what will occur next is less known.” Downtempo music also helps focus because your brain waves are able to sync up with the music, causing alpha waves. Smooth jazz along with nature sounds is an example of downtempo music to help keep focused. This shows how the brain is affected differently depending on what music is being listened to. Although clearly stimulated through the brain first, music affects mood and how people feel. This depends on the genre and feeling given off by the song itself. Music has the ability to shape personalities. This is proven through a study, where the participants observe that when put with a partner, the partner’s personality correlates with their music taste. Some correlations are listening to music with vocals means leads to being extroverted; listening to country music leads to being emotionally stable; and listening to jazz means higher intelligence. As said previously, jazz is also able to calm you down and relax your body. Listening to heavy metal is good for your self identity and living with less regret. In a study done at Humboldt State University, showed that only “around 33% metal fans reporting having regrets, compared to 51% of non-metal fans.” Classical music seemingly is able to put the mind at ease. A dozen London railway stations were given classical music to play by the city staff and “18 months later, vandalism was down 37%, robberies fell around 33%, and assaults on staff were down 25%” . The theory suggests that criminals are less likely to perform the acts because the classical music creates a sense of community, and “you’re less likely to do something when you think someone’s watching” . Members of Cambridge University theorized that since rap music can reach listeners on a more personal level because of the meaningful lyrics, it may be able to help to cope with depression. The uplifted moods cause those listeners to strive to be in a better mental state and to set goals in order to get there. A study done in 2009 by School of Sport and Education, Brunel University, West London, UK proved that rock and pop music help motivate people during workouts. They provide that ” Results indicated that endurance was increased in pop and rock music conditions and that motivational music had a greater ergogenic effect than did oudeterous music”. Normal music did not show to have the same effect on people when compared to the pop or rock music.