Editing Iconic memory (section)

=== Partial report ===
The '''partial report''' condition required participants to identify a subset of the characters from the visual display using [[Recall (memory)#Cued recall|cued recall]]. The cue was a tone which sounded at various time intervals (~50 ms) following the offset of the stimulus. The frequency of the tone (high, medium, or low) indicated which set of characters within the display were to be reported. Due to the fact that participants did not know which row would be cued for recall, performance in the partial report condition can be regarded as a random sample of an observer's memory for the entire display. This type of sampling revealed that immediately after stimulus offset, participants could recall a given row (from a 3x3 grid of 9 letters) on 75% of trials, suggesting that 75% of the entire visual display (75% of 9-letters) was accessible to memory.<ref name = "Sperling"/>  This is a dramatic increase in the hypothesized capacity of iconic memory derived from full-report trials.