A method for efficiently scheduling virtual resource blocks to physical resource blocks is disclosed. The OLED device desirably includes a second layer containing an alkali metal or an alkali metal compound, located between the cathode and the first layer. The main control section sends to a the motor driver instructions for moving the optical pickup by a movement distance which is determined on the basis of the setting. Incremental decreases in temperature can also be used to assess a patients’s neurological response.