Condign volumes 1 to 3

Read from the scan by GLM-OCR; expect the odd misread word.

# UNCLASSIFIED UK RESTRICTED

## POTENTIAL MENTAL EFFECTS ON HUMANS

13. Neurological, rather than biological effects may be the clue to some human behaviour after exposure in the near field of UAP radiation. Particularly sensitive are the temporal lobe areas of the brain. Unlike other parts of the brain, the temporal cortex can be rendered el ectrically unstable. The connection between RF fields and brain activity was confirmed by the 1980s. In the last 20 years much of the work has been concerned, on the one hand with protection of humans against RF hazards and secondly to understand the viability of microwave weapons. The amount of scientific papers on human interaction with RF fields in prodigious - 4500 papers alone between 1978 and 1984! The linking of brain activity to UAP events, where the witness is presumably within the near field influences, is currently only partially understood. since assumptions must be made (in the absence of real values) as to the type of fields being encountered. Within the UKADR these close encounters occur only a very few times each year. The well-reported Rendlesham Forest/Bentwaters event is an example where it might be postulated that several observers were probably exposed to UAP radiation for longer than normal UAP sighting periods. There may be other cases which remain unreported. It is clear that the recipients of these effects are not aware that their behaviour/perception of what they are observing is being modified. The E field strengths which are known to affect the brain are of the order 50 multivolts per centimetre at between 1 and 100MHz and experiments have shown that effects can be produced at levels of $ 10^{-7} $ to $ 10^{-8} $ volts per centimetre.

14. An important fact is that the reported effect of (presumed) UAP radiation on humans is that it is quick-acting and remembered although, curiously, following the event there is little or no recall of events as a continuum. In short, the witness often reports an apparent 'gaps' or 'lost time' - often not accounting for up to several hours. It is described as though the exposure causes a temporary memory

erasure. Experiments (on animals) have shown that low $ (3\mathrm{mW.cm}^{-1} $ at 450MHz) exposures affect brain calcium ions and that these are known to play an important role in the transmission of nerve impulses. Various modulations (e.g. 5Hz, 16Hz) were imposed on the radiation. However, whereas earlier experiments went on for tens of minutes - or even for hours: as such they were not (and not intended to be) representative of the very short UAP exposure times of a few seconds In 1981 it was discovered that E fields (at ELF) of 1050 or $ V.cm^{-2} $ at a modulation of 5Hz for only 5 to 10 seconds could increase the excitability of nerves for hours.

15. It is concluded therefore that if some UAPs, as is believed and correlated by actual reports (collateral effects on, for example, car electrical equipment) produce EM radiation then there is a high probability that they can affect the human brain.

16. It would seem that this effect can occur when close to a UAP, either outdoors or indoors. This causes the brain to interact in an unusual way with the imagination 'library'. causing reports of visual activity which are not in fact a true representation of the facts. It is of particular interest that a perusal of a limited number of old UAP reports (pre-20th century), while often similar or even identical to modern reports. does not produce evidence of 'spacecraft' aliens (grey or green). 'portholes' or 'searchlight' beams!

## APPLICABILITY TO UAP EVENTS

17. As there are few, if any, measurements of UAP radiation anywhere in the world, one option is to eliminate those RFs, modulations and radiation values which are known not to affect the human brain. For example, research has been done in this area in programmes which try to identify human susceptibility to mobile phones. In particular, operating at 160, 350 and 915MHz; and the new RF for mobiles at 1700MHz. Of course any pursuit of this process of identification or elimination is pointless if it turns out that UAP radiation is