title: Human perception of illumination with pulsed ultrahigh-frequency electromagnetic energy.
abstract: A psychophysical study of the perception of "sound" induced by illumination with pulse-modulated, ultrahigh-frequency electromagnetic energy indicated that perception was primarily dependent upon peak power and secondarily dependent upon pulse width. The average power did not significantly affect perception. Perceived characteristics of pitch and timbre appeared to be functions of modulation.
mesh_terms: D001307:Auditory Perception; D001309:Auditory Threshold; D055590:Electromagnetic Phenomena; D006801:Humans; D013016:Sound