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. 1973 Jul 27;181(4097):356-8.
doi: 10.1126/science.181.4097.356.

Human perception of illumination with pulsed ultrahigh-frequency electromagnetic energy

A H Frey, R Messenger Jr

Human perception of illumination with pulsed ultrahigh-frequency electromagnetic energy

A H Frey et al. Science. .

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.

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