1959 年 62 巻 5 号 p. 967-971
The author, usidg groups of patients with chronic sinusitis as materials of the study, invests gated changes of the capacity of mental work observed between pre- and postoperative conditions of the patient. As a control, capacity of mental work of normal individuals was examined twice with an interval of seven weeks. As a conclusion, the significant difference between pre- and postoperative conditions of the patient in capacity of mental work was found to exist