Iconic Memory - was the tone sounded after the letters had...

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PsychSim 5: ICONIC MEMORY Name: Laura Johnston Section: Modules 24 - 28 Date: October 3, 2009 This activity simulates Sperling’s classic experiments on the duration of visual sensory memory. Free Recall Test What was your score on the free recall test? ___52% ____ Iconic Memory What is Sperling’s theory of iconic memory? What is an “icon?” Sperling’s theory of iconic memory is that when shown a set of nine letters all were stored in the viewer’s memory but that memory faded so rapidly that only a handful could be moved into short term memory. Icons are individual memory traces. What is Sperling’s partial report task? How does it test his theory of iconic memory? Partial report task was rather than asking subjects to recall all of the letters he asked them to recall one row of letters. Each row was prompted with one of three tones, catch
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Unformatted text preview: was the tone sounded after the letters had disappeared. If the subject could report the target row correctly he could prove the letters were in the subjects memory. Partial Report Test • What was your score on the partial report test? ___48% ___ • Are your results consistent or inconsistent with typical results? What do typical results suggest? My results were inconsistent with the typical results. Typical results recall a significantly higher percentage of letters in cued recall task than in the free recall task. Delayed Partial Report Test • What was your score on the delayed partial report test? ___38% ___ • What does the typical drop in performance tells us about the duration of iconic memory? Most people recall significantly fewer letters when the cue is delayed by even as much as one-half second....
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