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(A) The Mouse Defense Test Battery. (B) The Joystick Operated Runway Task. A force-sensing interface controls the speed of a green dot cursor pursued along a runway by a red dot cursor capable of inflicting electric shock. The task comprised 12 trials each of pursuit (C), pursuit plus threat of electric shock (D), goal conflict (E), goal conflict plus threat of electric shock (F). Illustration by Nick Boon.
