In contrast, using average power densities measured in microwatts per square centimeter, we have found that ****r effects which are transient, can be induced with rf energy. Further, these effects occur the instant the transmitter is turned on. With appropriate modulation, the perception of different sounds can be induced in physically deaf, as well as normal, in human subjects at a distance of inches up to thousands of feet from the transmitter. With somewhat different transmission parameters, you can induce the perception of severe buffeting of the head, without such apparent vestibular symptoms as dizziness or nausea. Changing transmitter parameters down, one can induce a "pins-and-needles" sensation. Experimental work with these phenomena may yield information on auditory system functioning and, more generally, in the nervous system function. For example, this energy could possibly be used as a tool to explore nervous system coding, possibly using Neider and Neff's procedures (1), and for stimulating the nervous system without the damage caused by electrodes. Since most of our data have been obtained of the "rf sound" and only the visual system has previously been shown to respond to electromagnetic energy, this paper will be concerned only with the auditory effects data. As a further restriction, only data from human subjects will be reported, since only this data can be discussed meaningfully at the present time. The long series of studies we performed to ascertain that we were dealing with a biological significant phenomena (rather than broadcasts from sources such as loose fillings in the teeth) are summarized in another paper (2), which also reports on the measuring instruments used in this work. The intent of this paper is to bring this new phenomenon to the attention of physiologists. The data reported are intended to suggest numerous lines of experimentation and indicate necessary experimental controls. Since we are dealing with a significant phenomenon, we decided to explore the effects of a wide range of transmitter parameters to build up the body of knowledge which would allow us to generate hypotheses and determine what experimental controls would be necessary. Thus, the numbers given are conservative; they should not be considered precise, since the transmitters were never located in ideal laboratory environments. Within the limits of our measurements, the orientation of the subject in the rf field was of little consequence. -33-