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Pilot study of the influence of climate-geography factors of the Solovetsky Archipelago on GDV parameters of human and test readings

The problem of detecting geo-active zones and their influence on the state of human at-tracts attention of both specialists and public at large. At the same time, instrumental studies of the influence of environmental factors and geo-active zones on psycho-physiological state (PPS) of human are very scarce.
The present study set forth two tasks:

• Testing of a group of volunteers under the influence of climate-geography factors by GDV-graphy technique;
• Analysis of test readings of dedicated sensors in geo-active zones.

Characteristics of the group under test: 13 practically healthy volunteers, (5 men, 8 women), 22-58 years of age. Blood pressure and pulse measurements were normal and did not significantly change within the test period.
Location: the Bolshoy and Zayatsky Islands of the Solovetsky Archipelago.
Time: July 16, 17 and 18, 2004.
Techniques used: GDV-graphy. A GDV Compact instrument produced by KTI (St. Pe-tersburg); battery-powered 12V, 4 A/Hr, a 3-microsecond pulse packet, 1024 HZ during 0.5 s was used. Recording of single BMP files was carried out with a 200 microsecond delay from the moment of the beginning of pulse pack feed.
Single BMP files (GDV images) from 10 fingertips of all subjects under test and a series of 12 GDV images of the 4th finger of the right and left hands with time interval 3 s were recorded.
Recording and processing of the GDV images were carried out using an ASUS computer with battery power supply. The autonomous work duration was limited by the capacity of the computer batteries enabling to make the recordings of about 500 GDV images during one ses-sion.
The working procedure with dedicated sensors included registration of test readings at cer-tain moments in the GDV program by recording a series of single images or a series in dynamic mode. Processing of images and extraction of parameters were carried out in the “GDV SciLab” program (made by KTI). The design of sensors is described in the Addendum. Weather condi-tions were recorded by electronic sensors by “RadioShack Corporation Fort North” (USA) and “Suunto” (Finland).
During the experiments the subjects did not take alcohol drinks and medicine.

Results in *.pdf format (813 kb).