By G. Underwood (Auth.)
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Subjects heard three lists of words (letters and digits) simultaneously presented to different spatial locations (right ear, left ear, middle of the head) within 1 second, and after a variable delay were cued to recall part of this presentation on the basis of spatial location or word category. Recall under partial report conditions was compared to attempted recall of the whole of the list, and thus the situation is very similar to the Sperling design. Subjects are presented with nine items within 1 second, and these items are differentiated by spatial and semantic cues.
Then its effect should be restricted to the items in the echoic store, the final one or two items in the list. Figs. 13 indicate that this is not the case. The effect of the suffix is greatest at the final serial position, but is also evident in the earlier list positions, suggesting that the suffix operates in a more profound way upon the storage of the list than simply disrupting a limited capacity acoustic store. The predominantly nonlinguistic effect of the suffix has been demonstrated by Crowder and Raeburn (1970), in an experiment using three types of list.
A contralateral suffix would mask only the acoustic information in the common store, leaving the ear-specific store unmasked. Some acoustic information could then be used when a contralateral suffix is present, but not as much as when no suffix is present, thus accounting for the differences between the ipsi-, contralateral, and no-suffix conditions. The problem with this theory is that a binaural suffix should mask both the ear-specific store and the common store, having the same effect as an ipsilateral suffix, but it has a smaller effect.