Lots of people have documented acquiring hallucinations in the sensory deprivation tank. Over the years, experiments have demonstrated that sensory deprivation does induce psychosis-like ordeals. Ultrasound. An ultrasound on the wrist delivers a picture of your tendons and nerves. This tends to help exhibit whether the nerve is getting compressed. http://www.localhomeservicepros.com/health-care/pause-studio-city