| Abstract: | "… three experiments relating performance changes to noise levels are reported. Noise levels used were about 80 db representing 'quiet' and 110 db representing 'noise."' Ss in these 3 experiments were paid volunteer male undergraduates. In Experiment I, 9 Ss were exposed to successive half hours of experimental and control sessions "to check Broadbent's previously reported results that performance on a prolonged vigilance task was poorer in noise than in quiet." In Experiment II, 14 Ss were exposed to successive periods of experimental and control sessions "as a result of a suggestion by Miles that Ss working in high energy noise fields could not keep an accurate count on how far they had gone in a repetitive task." In Experiment III, 14 Ss were exposed to successive periods of experimental and control sessions to compare judgments in quiet and in noise. "It is clear that noise produces readily measurable changes in human performance." The effects of psychological stress may have been more important than noise in determining the results. 16 refs. (PsycINFO Database Record (c) 2010 APA, all rights reserved) |
