Dierk Langbein

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Using stroboscopic illumination, we observed the motion of the ossicles through a microscope in anesthetized cats. With periodic acoustic stimuli amplitude measurements could be made with an accuracy of approximately 1/10 micron. The displacement amplitude was linearly related to sound pressure at the tympanic membrane up to rms pressures of at least 130 db(More)
  • D Langbein
  • 1986
The question is posed: Why does a living cell react to the absence of gravity? What sensors may it have? Does it note pressure, sedimentation, convection, or other parameters? If somewhere in a liquid volume sodium ions are replaced by potassium ions, the density of the liquid changes locally: the heavier regions sink, the lighter regions rise. This may(More)
A. RHYTHMIC AFTERDISCHARGE TO FLASHES In response to slowly repeated flashes of light, the parieto-occipital EEG of human subjects with closed eyes frequently exhibits a series of rhythmic voltage fluctuations, a phenomenon that has been called the rhythmic sensory afterdischarge (references have been given elsewhere). This rhythmicity is usually not(More)
We have measured the precision of listeners in judging the relative position of a lateralized binaural stimulus with respect to a centered binaural stimulus. The stimuli were clicks produced by applying 100-4sec rectangular voltage pulses to PDR-10 earphones. The centered stimulus was a train of 15 clicks at a rate of 10 per second with zero interaural(More)
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