It was proved [6] that unlike symmetrical picture of intracortical connections normally, at the decrease of ergetics and human frame of mind the agitation of the right frontal region of the cortex and relative decrease of functioning of the left one are registered. At depressive positions the spectral capacity of practically all rhythms authentically decreases, excluding theta- and delta-rhythms, intensification of which occurs at the emotional tension [4, 5]. According to modern typology it is customary to distinguish two pathology types of emotional disorders: the first - with the overweight of active symptoms - enhanced emotional tension, impatience and anxiety; the second - with negative ones - emotional burnout, bad depressive position, social isolation and retardation [3]. Such differences are found out in the spectral capacity of beta- and alpha-rhythms, interconnections in alpha-diapason in endogenic and reactive depression patients [8, 9]. So, on the ground of the above said, an opportunity to select sound rhythm frequency, taking into account the peculiarities of spatial-frequency EEG characteristics, appears.
We have developed the rehabilitation methodology which allows solving this problem. The first and the second types of EEG disorders is set in if the average capacity of alpha- or beta-rhythms in the frontal derivations of the human right hemisphere is lower than in the neighbor derivations of the left one (the difference is more than 40-50%). The second type is manifested additionally, if the average capacity of alpha- or beta-rhythms in the left occipital derivations is lower than in the right ones (the difference is more than 40-50%). Also the availability of theta- or delta-diapason activity becomes apparent, with the amplitude of more than 50-60 mcV.
For brain rhythmic activity formation in the necessary direction it is offered to intensify the capacity of alpha- and beta-rhythms in the right frontal derivations with the help of binaural rhythms of the sinusoidal form with the frequencies correspondent to the calculated average frequencies in the specified derivations at the first type of EEG pathology. At the second type the alpha- or beta-rhythm capacity is increased both in the right frontal and left occipital derivations with the help of binaural waves with the frequencies correspondent to the calculated average frequencies in the same derivations. If in the EEG an increased slow-wave activity is available, to weaken it the binaural wave frequencies which differ from the calculated average frequencies in the derivations with the high amplitude or theta- and delta-rhythms capacity (the difference must be not less than 1-2 Hz) are selected.
The research testified that the offered method of rehabilitation is effective for soothing states of depression, anxiety at stress, computer or game addiction. At that not only the clinical status and psychophysical showings of clients are improved, but their evident positive psychic state of health becomes apparent. The application of the method allows lowering the level of anxiety indexes (according to the tests of Spielberg-Khanin and Tailor), increasing subjective (state of health, activity, mood on the test of SAN) and objective self-estimations (adaptivity on the test of Frolov, productivity, information processing rate, accuracy on the correction test of Landolt).
Sample 1. Patient V., 23 years of old. Increased anxiety, irritability, and infringement of dream. The preliminary diagnostics on EEG: desynchronization of alpha-rhythm and increased activity in the frontal parts of the cortex is registered, the average capacity of alpha-rhythm in the frontal derivations on the left is 2,8 mcV2/с2, on the right - 0,0 mcV2/с2, the average frequency in the frontal derivations on the left is 9,3 Hz. Slow waves of delta-diapason up to 125 mcV, frequency of 1,1 Hz and theta-diapason up to 55 mcV, frequency of 5,3 Hz, are detected. The average capacity of alpha-rhythm in the occipital derivations on the left is 3,7 mcV2/c2, on the right - 4,3 mcV2/c2. The average frequency both on the left and on the right is 9,8 Hz. The first type of EEG changes is defined, that corresponds to the reactive type of emotional pathology. The action was carried out by means of binaural rhythms of sinusoidal form with the help of stereo earphones. A set of two frequencies is selected: 9,8 Hz and 3 Hz. The effect time for one séance made 35 min. Ten séances were carried out.
Finally, the positive result was achieved. The anxiety had decreased. The alpha-rhythm zonality had restored. The asymmetry in the anterior regions of the cortex had been practically deleted. The average alpha-rhythm capacity in the frontal derivations on the left was 1,1 mcV2/с2, on the right - 1,0 mcV2/с2. The average alpha-rhythm capacity in the occipital derivations on the left had increased up to 8,5 mcV2/с2, on the right - 8,2 mcV2/с2. The amplitude of pathological waves had decreased up to 61 mcV.
Sample 2. Patient F., 18 years old. State of tense, lowered mood, attention and working capacity. The preliminary EEG diagnostics: agitations in the right frontal region of the cortex in magnitudes of the alpha- and beta-rhythm average capacity are registered. The average capacity of alpha-rhythm in the frontal derivations on the left is 3,9 mcV2/с2, on the right - 1,9 mcV2/с2. The average frequency is accordingly 8,5 and 10,3 Hz. The average capacity of alpha-rhythm in the occipital derivations on the left is 8,4 mcV2/с2, on the right - 7,9 mcV2/с2. The average frequency is accordingly 10 and 10,5 Hz. The average capacity of low-frequency beta-rhythm in the frontal derivations on the left is 0,6 mcV2/с2, on the right - 0,1 mcV2/с2. The average frequency is 16,3 Hz on the left accordingly. The average capacity of low-frequency beta-rhythm in the occipital derivations on the left is 1,7 mcV2/с2, on the right - 1,5 mcV2/с2. The average frequency is accordingly 15,8 and 15 Hz. The average capacity of high-frequency beta-rhythm in the frontal derivations on the left is 0,4 mcV2/с2, on the right - 0,0 mcV2/с2. The average frequency is accordingly 28,3 Hz on the left. The average capacity of high-frequency beta-rhythm in the occipital derivations on the left is 0,5 mcV2/с2, on the right - 0,5 mcV2/с2. The average frequency is accordingly 24 and 22,5 Hz. The reactive pathology type is defined. The action was carried out by means of binaural rhythm set of the following frequencies: 10,3 Hz (the average alpha-rhythm frequency in the frontal derivations on the right, 15 and 22,5 Hz (the average frequencies of low- and high-frequency beta-rhythms on the right). The effect time for one séance made 40 min. Ten séances were carried out.
After the correction the emotional state of the patient improved, the attention and working capacity increased. Against the background of total alpha-rhythm capacity increase the asymmetry of biopotential distribution in the anterior cortex regions decreased. The alpha-rhythm zonality restored.
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The article is admitted to the International Scientific Conference "Medical, social and economic problems of preservation of health of the population", Turkey, May, 21-28st 2007, came to the editorial office on 15.04.2007