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This is Volume 2 of the Ministry of Defence report 'Unidentified Aerial Phenomena in the UK Air Defence Region', Defence Intelligence Staff Scientific and Technical Memorandum 55/2/00, dated February 2000 and received 7 December 2000. It gathers 25 working papers on natural and man-made phenomena, meant as a reference for analysing UAP reports. The papers cover ball lightning, radar detection, balloons, satellites, mirages, plasma and similar subjects. One paper compares magnetic field experiments on human volunteers with close encounter reports. It concludes that effects from such fields are 'uncannily similar' to what witnesses describe.
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# UNCLASSIFIED UK RESTRICTED the only influence present - the magnetic fields. 8. Two further important factors are noted: No artefacts were present in the test area to visually suggest themes (for example a space theme is known to evoke 'alien' presence, a religious artifact is known to evoke reflections on death etc.). Elaborations and attributions are known to depend on the personality of the subject. People who display frequent temporal lobe signs generate more frequent and intense experiences. The former was circumvented by placing the subjects in a plain chamber with low intensity red lighting. The second was, to an extent, reduced by taking an adequate population sample. 9. Instrumentation placed on the subject's head measured the temporal lobe bipolar electroencephalegraphic activity. Test results (which overlap with separate experiments with 85 volunteers, described at paper[1], below) are combined at Table 1. There was a general increase in all classes of experience when the fields were at 4Hz and 9Hz, compared with the 16Hz (and sham) values. It was noted that people who display more intuition (than sensing), perceiving (than judging) and feeling (than thinking), tend to display enhanced temporal lobe signs. The intensity of the spinning and tingling were less than the other 'symptoms' reported. 10. In 1991 Persinger et al continued their neurological experiment, with human subjects. This time they were exposed to spatiallyrotated complex magnetic fields applied across the temporal lobes of the brain. It was discovered that the fields markedly increased the interaction with the neuro-electrical ensembles. Several field frequencies and pulse patterns were used. The results indicate that a person's temporal lobe profile affects the types and intensities of experience reported when exposed for short periods to fields of this type. The full list of 'symptoms' produced is shown at the matrix at Table 1. They appear to be amazingly similar to those reported by people who have had close encounters with a UAP. The words used in the Table are those reported by the 85 male and female volunteers (20 to 37 years). 11. Magnetic Flux Levels The magnetic field strength was 1mG (100nT). A 16Hz pulsed wave generated more experiences of thought intrusion than a 4Hz wave. A positive feedback ringing (also at 4Hz) evoked more visual memories and image than the mirror image of the same wave. The effects included vivid visual sensations, memory fragments, a sense of intense meaning, intrusion of ideas or images, mystical experiences and alterations of boundaries defining 'self'. 12. It was deduced that an applied magnetic sine wave would be minimally effective (compared with the filtered square wave used) unless the
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