According to Sperling, what is the capacity of iconic memory
everything that can be seen at one time
Sperling’s experiments in the 1960s showed that iconic memory, which is a type of sensory memory that stores visual information, has a high capacity. In his experiment, participants were presented with a brief display of letters and were asked to report as many letters as possible. In one version of the experiment, participants were instructed to report all the letters they saw while in another version, they were only asked to report a specific row of letters. Sperling found that participants were able to recall an average of 4.5 out of 12 letters in the whole report condition and nearly perfect recall (about 3 out of 4 letters) in the partial report condition. This suggests that the capacity of iconic memory is relatively high, but that it decays rapidly over time, within a fraction of a second.
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