[Psychoneurological requirements in evaluating the functional state of cosmonauts in flight]

Selection and training of experts-psychoneurologists to be included into a team of operational medical monitoring are described. In regards to the capacity for synonymic paraphrasing, the conditions required for stability of individual opinions and their coincidence in different people are discussed. The capacity refers to the choice of the most suitable word among a number of synonyms. On this basis it is recommended to use similarity problems in appraising the function of an expert who involves verbal description of various events.