Experiment 3
This experiment was designed to consider the dual-buffer model by examining the
effect of masking when uncertainty regarding which letter to recall was kept at a constant
minimum. From what is known about backward masking, partial-report performance is
expected to increase with increases in mask-ISI (Kahneman, 1968; Turvey, 1973).
As envisaged in the dual-buffer model, the progressive improvement with
increases in the mask-ISI is due to the fact that more and more items are being
successfully read from the feature buffer into the character buffer. Hence, the expected
outcomes in terms of item information have been depicted in the middle left panel of
Figure 5. Essentially, at short mask-ISI less item information should be available with
than without a mask. However, it should reach a maximum asymptote at longer mask-ISI.
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