[ I P Pavlov principles of the higher nervous activity--a reliable basis for modern cognitive physiology]. 
The paper shows that formulated by I. P. Pavlov principles of higher nervous activity are quite fruitful even today in investigations into the problems associated with contemporary new physiological trends as, for instance, cognitive processes.  Special attention is paid to study of the principles of neurophysiological organisation of the mechanisms carrying out analysing and synthesising activities.  I. P. Pavlov was the first to indicate the important role of frontal cortex in these processes.