Video demonstrates cataplexy elicited by the strong emotional stimulus of conducting an orchestra. The patient becomes excited, has loss of muscle tone with unbuckling of the knees, and falls to the ground. Consciousness is preserved completely, and he never loses awareness. He recovers quickly, regaining his muscle strength and standing up as if he never experienced the episode.
Geert Mayer, MD, PhD
CONTINUUM: Lifelong Learning in Neurology. 19(1, Sleep Disorders):67-85, February 2013