Condign volumes 1 to 3

## UNCLASSIFIED

UK RESTRICTED

Range(m)	Power at Observer(m. Gauss)	Power at Source(m. Gauss)
1	1	1
5	1	25
10	1	100
20	1	400
25	1	625

## NEUROLOGICAL RESPONSE TO MAGNETIC FIELDS

4. On several occasions Persinger, et al [1], carried out measurements on volunteers to assess the (medical/neurological) response to biofrequency magnetic fields; while making concurrent EEG pattern readings on the subjects. In 1990 18 male and 18 female volunteers (University Students) with ages ranging from 18 to 25 years were exposed to 9Hz, 4Hz, and 16Hz fields, plus a sham (control) field. The field strength was varied 0.3mG to 1.0mG (100nT) and pulsed at both polarisations. The fields were generated by solenoids fed, via a filter circuit, with square waves. The resulting imaging effect was caused by the successive rising and falling edge of the square wave and the components 0.1 $ \mu $ F, 5.19mH and 5.2 $ \Omega $ resulted in an impulse, with rise-time <0.1msec. The experimental decrease returned to zero polarity within 0.3msec, proceeded through a maximum reversed polarity at 0.6msec

and then returned to the zero condition at 1.0msec. Thus, the amplitude of the maximum reversed polarity was 1/6 of the initial rise peak; with a positive and negative mirror at the beginning of each wave. Hence (in the first test case) a 4Hz square wave passed through the circuit, generated 4 initially positive and 4 negative pulses per second. The test chamber was opaque to any other radio interference.

5. Temporal Lobe Activity A significant temporal lobe activity was registered. These areas are the most electrically labile of the human brain. It was demonstrated that people who already possess high levels of activity in this area are likely to experience.

- Mystical or paranormal activities

- Fear

- 'Out of body' activities

- Tingling or vibration.

6. The psychological profile of such people is that they are naturally disposed towards inordinate interests in poetry, mystical or the paranormal, philosophical (religious) and a sense of special purpose, whereby infrequent or unusual events (such as transient social or astronomical events) acquire a special, personal, meaning. There are strong connections between temporal lobe response activity and epilepsy.

7. Major factors of interest are that the experiments were made in an acoustically screened (as well as Faraday) chamber to exclude sounds which could be detected and responded to by the temporal lobes. Hence, all responses were caused by