The present study investigates the pseudohomophone effect of visually presented stimuli in lexical decision tasks and addresses the fundamental question, whether various aspects of attention influence the size of this effect. It was assumed, based on numerous studies, that pseudohomophones - pseudowords that sound like words - are processed differently from pseudowords that do not sound like real words. That is, longer reaction times and higher error rates are typcially observed for pseudohomophones than for pseudowords. It was also assumed, that the selective or focused attention has an influence on this effect and is related to the ability to control interference and concentration. To verify these assumptions, a total sample of 49 persons between 19 and 34 years took part in a lexical decision task with pseudohomophones and pseudowords. In addition, they did two paper and pencil tests, the german version of the Stroop test and the d2 test of attention. The results showed that it took longer and was more error prone to reject pseudohomophones than pseudowords (pseudohomophone effect). Furthermore, it was shown that the size of the interference effect is not correlated with the size of the pseudohomophone effect. The ability to concentrate only influenced the error rate in the pseudohomophone effect. These results indicate that the pseudohomophone effect and visual word recognition in general is due to a largely automatic reading process, that is independent of attention.