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In our lab we set out to find if emotions have an effect on heart rate, we believed that our emotions, and stress levels do effect our heart rate, and that videos that were scary would .  In order to find out more, we decided to watch videos that showed graphic violence that would make us scared, and stressed and to watch videos that were funny, or relaxing and would make us happy.

For the first part of the experiment, Sophie watched three trailers for scary movies. During the first movie (Mirrors), Sophie's heart rate spiked once during a particularly violent scene, and thereafter had a higher heart rate . During the second movie (Prom Night) Sophie's heart rate spiked two times. During the trailer for the third movie (Paranormal Activity), which Sophie did not find particularly scary, there was no abnormal activity.

For the second part of the experiment, Sophie's heart spiked two times during the first trailer (Lady and the Tramp)  but for the most part her heart rate was lower. During the second trailer (Arthur) Sophie's heart rate was higher, especially during a scene that had a baby crying and lots of commotion. During the third trailer (The Office) Sophie's heart rate was very consistent and appeared normal.  During the final clip (Christian the Lion) which Sophie was outwardly very excited about, her heart rate was constantly spiking and very erratic.

Data:

Not Scary Movies:

Scary Movies:

Our information has led us to believe that our hypothesis is correct, because Sophie's heart rate only spiked during scenes where she was either frightened, interested or annoyed by the content. Additionally in scenes that Sophie did not find scary or interesting her heart rate did not change. This makes us believe that when we are highly stressed, or very excited our heart rates go up.