DETERMINATION OF THRESHOLD VALUES FOR OLFACTORY PERCEPTION OF PRIMARY ODOUR SUBSTANCES

Abstract

Population threshold for olfactory perception have been obtained with eight kinds of primary odour substances to develop the method of field study. Triangle method and serial method have been used for the measurement and the latter has been proved to be suitable for the present purpose. Reliability of population threshold values for olfactory perception and effect of volume of sample solution on the values have been examined. New device has been developed to illustrate the olfactory function of subject.