| ARTICLES |
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| Year : 2003 | Volume
: 6
| Issue : 21 | Page : 51--62 |
Signal perception during performance of an activity under the influence of noise
CA Sust1, H Lazarus2
1 ABoVe GmbH, Wettenberg, Germany
2 Bundesanstalt für Arbeitsschutz und Arbeitsmedizin, Dortmund, Germany
Correspondence Address:
C A Sust
ABoVe GmbH Dresdener Str. 11, D-35435 Wettenberg
Germany
 Source of Support: None, Conflict of Interest: None  | Check |
PMID: 14965453 
Usually the perception of acoustic signals is investigated under conditions where the subjects pay full attention to the signals. It can be assumed that the threshold of signal perception is much higher if the attention has simultaneously to be focused on the execution of any kind of other activity. In the following experiment subjects have to perceive acoustic signals while solving different arithmetical tasks at the same time. The results (number of perceived signals, number of arithmetical tasks solved, reaction time, and solving time) show that the threshold of signal perception rises while other tasks are being performed simultaneously. Consequences for the recognition of warning signals in occupational safety and in traffic conditions are discussed.
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