It's funny but it looks just like the procedure you go through for a modern MRI. The doctors and technicians are just dressed in a different style of uniforms and lab coats.
The information is coming out from the top of the device as the man is slid into the machine.
In the upper left hand corner the unfortunate patient seems to be having something done to his eye. What's coming out from under his chair?
Is that a barbecue grill in the lower left-hand corner?