[Multi-shift work and work under conditions of jet lag. Questionnaire studies].

The authors discuss the disturbances in the biorhythm - sleep - waking in the workers who are on duty at the posts of command and in communication ouration pilots surpassing the time zones. The questionnaire method was used. The resultant desynchronization of the biological rhythm is exhibited mainly through the subjective feeling of fatigue and sleepiness.

Ethyl alcohol effect on the visual evoked potential.

The investigations were carried out in 30 clinically healthy pilots who were given 1 g/kg of body weight of ethanol orally. Visual evoked potentials were recorded 30 and 60 minutes after alcohol ingestion in the occipital leads using an ANOPS-10 computer. It was found that ethanol caused prolongation of the latency time of all components parallel with rising concentration of ethanol in the blood.

Variability of the averaged evoked potentials in healthy subjects after 24-hour sleep deprivation.

Variability of the averaged evoked visual potentials in healthy subjects after 24-hour sleep deprivation. Acta Physiol. Pol.

[Effect of phenactil (chlorpromazine) on cortical visual evoked potentials in clinically healthy subjects with normal and abnormal electroencephalograms].

The results of a study of averaged cortical visual evoked potentials in healthy subjects with abnormal EEG records and in subjects with normal EEG are presented. The investigations were performed at rest and after activation with chlorpromazine. The potentials were recorded from typical sites in the visual cortex (O2--CZ and O1--CZ).