in Eich's (1984) procedure

The relation between memory and attention has been of long-standing interest. Eich (1984) made an important discovery of implicit but not explicit memory for contextually determined homophones (e.g., taxi-FARE) presented in a channel to be ignored within a selective listeningprocedure. However, his slow rate of presentation of shadowing task materials may have allowed frequent attention shifts to the allegedly ignored channel. With a direct replication of Eich's timing parameters, we repro-duced his results, but when the attended channel was presented twice as fast as Eich's, implicit mem-ory for the to-be-ignored words vanished. Our results contradict claims of extensive semantic pro-cessing of unattended auditory information in this task. An important issue in the investigation of the limits of human cognition is the degree to which people process and remember events without paying attention to them. Considerable evidence exists that unattended informa-tion is not processed to such an extent that it subse-quently will be available for tests of explicit memory such as free recall or recognition (Kidd & Greenwald