THE INFLUENCE OF NOISE ON TWO DISCRIMINATION TASKS

Recent research has revealed that noise effects on work become apparent in an increasingly irregularity of reaction times instead of in a general decrease in the total number of reactions. This paper is concerned with the measurement of the degree of irregularity in two paper-and-pencil tasks. Both tests were performed twice on different days for half an hour each. The experiment was designed to compare two different noiso conditions : in one the noise changed randomly about an average level of 75 dB., in the other it was steady at 70 da.