The effects of different types of noise on semantic processing and syntactic reasoning

Abstract The results of four experiments showed that there was no effect of continuous noise on semantic processing and syntactic reasoning tests. However, performance on both tests was impaired when conglomerate noise, consisting of typewriting, music and unattended speech was played. It is suggested that this represents a distraction effect similar to those already reported in the literature, and this result also emphasises the importance of considering the effects of meaningful noise rather than just examining white noise of different intensities. Performance on the semantic processing test was impaired by intermittent, unpredictable noise, but this noise had no effect on the syntactic reasoning test. Possible reasons for the different effects of the intermittent noise on the two tests are put forward.