Impact of Relaxing Visual Immersion on Anxiety During Anti-cancer Treatment.

Since the 60's and 70's, the soar of audiovisual technologies allowed the development of virtual reality (VR). These technologies were then adapted to help reducing anxiety and pain during medical procedures. For visual or audio stimulation, the use of glasses or helmet is frequent. However, little is know about the efficacy of technologies which are not isolating the patient from his real environment during medical care. With this study, the investigators will assess the impact of this kind of sensitive stimulation without isolating the patient, on reducing the anxiety during intravenous treatment in patients with cancer. The machine the investigators are using is projecting relaxing nature movies on the ceiling of the room, with nature sounds or relaxing music.