M. Jordanova1, D. Maslarov2, I. Stoilova2, T. Zenchenko3, T. Breus3

1Space Research & Technology Institute, Sofia, Bulgaria, mjordan@bas.bg 2First Municipality Hospital, Sofia, Bulgaria

3Space research Institute, Russian Academy of Sciences, Moscow, Russia

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o Space Research & Technology Institute, Bulgarian Academy of Sciences, Sofia, Bulgaria

o First Municipality Hospital, Sofia, Bulgaria

o Institute for Population and Human Studies, Bulgarian Academy of Sciences, Bulgaria

o University Hospital for Active Treatment “St. Anna”, Sofia, Bulgaria

o Space research Institute, Russian Academy of Sciences, Moscow, Russia

o Central Clinical Hospital GSC Russian Railways Moscow, Russia

o Institute of Theoretical and Experimental Biophysics RAS, Pushchino, Russia

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To study the relationships between geomagnetic activity (GMA) and meteorology factors and cerebral activity

Duration 2011 – 2015 Why geomagnetic activity and human brain?

A subset of the human population (10-15%) is a bona fide hypersensitive and predisposed to adverse health problems due to geomagnetic variations

Extremely high as well as extremely low values of GMA seem to affect the health status

Experimental studies support the hypothesis for a possible correlation between mental health and solar activity, i.e. correlations between geomagnetic intensity and

The number of persons admitted to a psychiatric hospital The suicide attempts The traffic accidents The number of suicidal terroristic acts The occurrence of acute neurological vascular accidents

In order to demonstrate the potential correlations a large scale research, including hundreds or even thousands of subjects, has to be performed

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To study: The effects of GMA and meteorology on behavior of healthy

volunteers; The effects of preliminary advertisement of possible magnetic storms

on the wellbeing of health volunteers (well-being surveys); The link between geomagnetic activity and the occurrence of cerebral

pathology; The lag, if any, between the time of manifestation of cerebral

vascular accidents and the geomagnetic indexes; The relation between the cerebral vascular pathology (ischemic or

hemorrhagic cerebral infarction) and the stages of magnetic storms, i.e. to confirm or reject the theory that during geomagnetic disturbances the microcirculation parameters of human brain may undergo rapid changes from increased coagulation (i.e. increased probability of thromboses) to decreased viscosity (i.e. increased probability of hemorrhages)

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J F M A M J J A S O N D2012

J F M A M J J A S O N D2011

J F M A M J J A S O N D2015

J F M A M J J A S O N D2014

J F M A M J J A S O N D2013

Pre-selection of psy- &psychophysiology tests

Final selection of psy- &psychophysiology tests

Preliminarytesting

Monitoring vital parameters of healthy volunteers

Collecting cases of patients with cerebral vascular pathology both in Moscow and Sofia

Well-being survey Well-being survey

Creating a database of patients with brain damage

Creating a database - testing of healthy volunteers

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SubjectsHealthy voluntariesBrain damaged patients

Methods Healthy subjects

▪ Longitudinal monitoring of vital parameters:▪ Systolic and diastolic arterial blood pressure▪ Heart rate variability ▪ Reaction time to simple audio-motor stimulation▪ Reaction time to simple visually-motor stimulation▪ Reaction to moving objects▪ …

Registration time to simple audio-motor stimulation

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Psychology tests Activity Attention Level of anxiety Locus of control Laterality (Handedness) Personality …

Brain damage patients Retrospective surveys and selection of suitable patients Distribution of patients according to diagnosis, gender, time of cerebral

accident Meteorological and geomagnetic data

◦ GMA indices - ftp.ngdc.noaa.gov/STP/GEOMAGNETIC_DATA/INDICES/KP_AP

◦ Meteorological parameters

Locus of control

Attention proof test

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Data collection – patients with cerebral vascular pathology

2001 20096225

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Acknowledgement: The date were provided by j. H. King, N. Papatashvilli at ADNET, NASA GSFC and CDAWeb, http://cdaweb.gsfc.nasa.gov/

Illustrations: Copyright WebMed 2002, http://www.webmd.com/stroke/understanding-stroke-basics

10

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Ischemic stroke

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Ischemic stroke

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Ischemic stroke

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1. Nervous System2. Musculoskeletal

System 3. Respiratory System 4. Cardiovascular System 5. Endocrine System 6. Gastrointestinal

system 7. Reproductive System

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