The Czech version of the Washington psychosocial questionnaire for paroxysmal diseases (WPSI) was presented to 100 ambulatory patients selected at random at the Regional Clinic for Paroxysmal Diseases in Prague (55 men, 45 women). The results are compared with data in the literature on samples from other countries; the Czech sample has mostly median values. Comparison of the sub-groups of the Czech group revealed differences by sex (women had more problems in the scale of family background, men in the scale of vocational adjustment), by the duration of the disease (with a shorter duration of the disease greater financial difficulties were associated), and by the neurologist's evaluation of the development of the disease (on the whole patients with a favourable development of the disease had significantly more often a high score of the lie scale-40.5%). Those patients with a favourable development of the disease who had the score of the lie scale in the normal range had greater difficulties with interpersonal adaptation and adaptation at work than patients with an adverse development of the disease.