title: A method for detecting epileptic seizures.
abstract: A simple instrument for detecting seizures is described. Vibrations of the bed due to movements of the patient were converted to electrical oscillations by movement of a loudspeaker coil in reversed mode as transducer. To distinguish between normal movements and those caused by a seizure, three criteria were used--the amplitude of the oscillations, the time interval between them, and the duration of a burst of oscillations, each parameter compared with a reference value for each patient.
mesh_terms: D001513:Beds; D004582:Electronics, Medical; D004827:Epilepsy / Q000175:diagnosis*; D006801:Humans; D008991:Monitoring, Physiologic / Q000295:instrumentation*; D009068:Movement; D013997:Time Factors; D014159:Transducers; D014732:Vibration