Generate a question about the following movie plot: It's 2011, in Madrid. Professor Fuentes (Miguel Angel Jenner) is tying five Medicine students up to chairs. He explains methodically that he is going to make an experiment above the power of the mind, and subsequently he asks for a volunteer without specifying what for. Jose "Jose" Aguas (Maxi Iglesias) is so cocky that he becomes sort of nominated by the rest of the students. Professor Fuentes shows them an emergency cabinet and a penknife, and he cuts Jose in one of his arms, saying that Jose has the mental power of stopping himself from bleeding to death. If he doesn't succeed, he will die, because he had cut him through one of the main arteries of the body. The students start to scream, snobbish Belen (Ursula Corbero) threatens Fuentes to tell her father, but nobody can prevent Jose from having a fit.The momentum is broken. Toni (Oscar Sinela), who has been drescribed as a friqui - which in Spanish means a mixture of freak and geek - starts laughing, saying that the rest should have seen their own panicky faces.Fuentes explains that the mind can send a symptom to oblivion, but it can also create it. There was a surgery bag with pig blood attached to the chair, and when Fuentes cut it, it started to release the blood little by little. Jose wasn't even scratched with the penknife. Jose tries to punch Toni, but the rest prevent so. Fuentes picks up his stuff and leaves, reminding them of next week's examinations and saying that the future surgeons have to learn to remain calm, cool and collected in the future.Angela (Amaia Salamanca) runs after Fuentes: he had promised her that there will be no final examination for those who would be the Guinean pigs in the experiment. First, Fuentes congratulated her, because she was the only one who was not panicky, and then he tells her that he hopes that she has learned something, and that the experiment will help her in the future. He also reminds her that she is about to lose her grant because she is about to fail his subject. A folder of newspaper cuts fall to the...
Answer:
What is Angela forced to investigate for the purpose of proving or disproving paranormal activity?