( , , , ) 2. , (, , . 3). , - , . .
. (, sampling) . F, 2 F, .. , , , 100 , 200 .
:
1. (SUMi (t)) : S i(t) , P i (t);
2. S i (t) ;
3. P i (t) , .. i - t :
.
N , , P i(t) , a S i(t), , 1/ N. , , , 1:1, 25 / 1: 5, 100 1: 10. : , 300 3050 , 4000 7000 (Hughes, 1985).
, [Rockstroh et al., 1982]. , , , .. . , , , , (, ) . .
, ( ) .
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, ( n , , = 5 0,5; 1,0; 2,0; 1,0; 0,5) , . , -, . , , (n1)/2 , ( ), . , . , 1, 1, 1, 1, 1, 1, 1 , 1, 5, 10, 15, 10, 5, 1, a 1, 1, 1, 1, 1, 1, 1, 1, 1 .
, , , (Fast Fourier Transformation FFT). sin cos , , .. . , (FFT-1) . . , . , , ( FFT1) : 50 , , , .. , , , , .
, , , , , ().
, , (wave, oscillation, deflection, shift) , , /, (. [Naatanen et al., 1993; Rockstroh et al., 1982, p.107 108]). , , , . , , , (mismatch negativity MMN) [Naatanen et al., 1993], , (processing negativity) [Ritter et al., 1984], (sustained negativity) [Naatanen, Michie, 1979] (CNV, 300 Slow Wave)[Sutton, Ruchkin, 1984].
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: 1) - : ( , N ), , ( , , 100, N200) (, 1, N1, P2, P3 ..), (baseline) (peak-to-peak amplitude); 2) (topography); 3) , ; 4) (task dependence).
, , , , 300 250 1500 . , .
, (. . 2). , , , . , (), , , , , . ( , ). [Gevins et al., 1995]. , , , , (. [Event-Related, 1991]).