Kimbal Daniel R, Bjork Elizabeth L, Bjork Robert A, Smith Troy A
Department of Psychology, University of Texas, Arlington, Texas 76019, USA.
Psychon Bull Rev. 2008 Apr;15(2):296-301. doi: 10.3758/pbr.15.2.296.
False recall of an unpresented critical word after studying its semantic associates can be reduced substantially if the strongest and earliest-studied associates are presented as part-list cues during testing (Kimball & Bjork, 2002). To disentangle episodic and semantic contributions to this decline in false recall, we factorially manipulated the cues' serial position and their strength of association to the critical word. Presenting cues comprising words that had been studied early in a list produced a greater reduction in false recall than did presenting words studied late in the list, independent of the cues' associative strength, but only when recall of the cues themselves was prohibited. When recall of the cues was permitted, neither early-studied nor late-studied cues decreased false recall reliably, relative to uncued lists. The findings suggest that critical words and early-studied words share a similar fate during recall, owing to selective episodic strengthening of their associations during study.
如果在测试过程中呈现最强且最早学习的关联词作为部分列表线索,那么在学习了某个关键单词的语义关联词之后,对未呈现的关键单词的错误回忆可以大幅减少(金博尔和比约克,2002)。为了区分情景记忆和语义记忆对这种错误回忆下降的影响,我们通过因素分析操纵了线索的序列位置及其与关键单词的关联强度。呈现包含列表中早期学习单词的线索,相比于呈现列表中晚期学习的单词,能更大程度地减少错误回忆,这与线索的关联强度无关,但前提是禁止回忆线索本身。当允许回忆线索时,相对于无线索列表,早期学习和晚期学习的线索都不能可靠地减少错误回忆。研究结果表明,在回忆过程中,关键单词和早期学习的单词有着相似的命运,这是由于在学习过程中它们的关联被选择性地进行了情景强化。