Word frequency effects in experienced and previously experienced adult readers of Persian.

In a word naming experiment, experienced readers of Persian named high frequency transparent Persian words significantly faster than matched low frequency words. There was no such frequency effect for adults who had, during the past decade or more, very little experience in reading materials in Persian due to immigration to the West. Overall, the previously experienced adults named words significantly slower than their experienced counterparts. The implications of this finding in relation to models of visual word recognition are discussed.