Neurology is an area of medicine, which is quickly developing, both with respect to research on etiopathogenesis, as well as with respect to therapy. Currently presented papers relate to various topics from this area, frequently arising, in medical practice. We believe that issues described in a series of abovementioned papers would be interested to wide circles of our Readers. The articles constitute a follow-up series regarding brain stroke, epilepsy, extrapyramidal disorders and multiple sclerosis presented in one of the previons edition of „Postępy Nauk Medycznych”-monthly.

The first original paper (Author: Dr. A. Sobieszek) presents results of maping of evolution of bioelectrical brain activities using the traditional method and advantages of a new method of electroencephalography recording, involving transformation of the original multi-channel electroencephalogram record into color maps expressing continuous, spatiotemporal evolution of electroencephalogram pattern.

The second paper (Author: Dr. C. Siemianowski) relates to research on drug-resistancy of epilepsy. It describes results and directions of molecular, genetic and immunochemical research related to drug-resistancy and its significance for the daily clinical practice.

Non-compulsive epilepsy status has been described since a long time. It is a diversified symptoms-disease, still constituting a "clinically difficult diagnosis”. This topic is presented in the next paper (Author: Prof. J. Jędrzejczak), which also contains diagnostic criteria and therapeutic suggestions.