317_review_questions_second_exam_fall_09

317_review_questions_second_exam_fall_09 - Review...

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Review Questions, Second Exam 1. Describe the Brown-Peterson task. Why did Peterson and Peterson (1959) say that forgetting in short-term memory was due to decay rather than to interference? Differentiate retroactive and proactive inhibition. o The Brown-Peterson task a three letter trigram was presented followed by three numbers, subjects were told attend to the three letters then to begin counting backwards by threes from the number they had been given, aloud to a metronome that was clicking twice per second. Peterson and Peterson said that forgetting in short-term memory was due to decay because they said that forgetting might be cause by simply by the passage of time before testing. o Proactive inhibition is when older material interferes forward in time with recollection of the current stimulus and retroactive is when newer information interferes backward in time with recollection of older items. 2. Describe the Sternberg task for investigating retrieval from STM. What did Sternberg conclude concerning the type of search that occurs of material in STM? What is one criticism of Sternberg’s conclusions? o
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317_review_questions_second_exam_fall_09 - Review...

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