Ak. Malikova, SPECTRAL CHARACTERISTICS OF RABBITS NEOCORTICAL BIOPOTENTIALS AT CESSATION OF THIRST DOMINANT, Zurnal vyssej nervnoj deatelnosti im. I.P. Pavlova, 45(2), 1995, pp. 279-288
Spectral analysis of neocortical electrical activity of rabbits during
learning blinking reaction which was directed to cessation of thirst
dominant, revealed significant increase of the, spectral power most pr
onounced and regular in the delta-range. On the basis of these data a
conclusion is drawn that during the goal-directed behaviour of the ani
mal the cortical structures are involved in the dominant constellation
. Comparison of the spectral characteristics of potentials recorded in
three successive 5-second intervals which preceded blinking, revealed
a certain specificity (temporal and related to different frequency ra
nges) of changes in electrical activity in different cortex areas. The
se findings reflected functional ambiguity and phase course of the pro
cesses which accompany preparation for the goal-directed reaction.