语词遮蔽效应 Verbal overshadowing effect VOE

  • 心理空间

    2020-06-04 18:39
    1990年美国的乔纳森·斯库勒(Jonathan Schooler)和托尼娅·恩格斯特勒-斯库勒(Tonya Engstler-Schooler)发现。

    在观看入室抢劫场景的录像后,如果先尝试用语言描述抢劫犯的面部特征,再从照片中识别抢劫犯,受试者的识别准确率就会下降。复述的过程实际上创造了对记忆的语言描述,会干扰最初以知觉的形式编码的记忆,这就是“语词遮蔽效应”。
    verbalizing a visual memory may produce a verbally biased memory representation that can interfere with the application of the original visual memory.

    尽管斯库勒本人对此感到难以置信,但2014年发表的一 项研究打消了他的疑虑:33个实验室的90名研究者共同证明,语词遮蔽效应是真实存在的。

    Schooler, J. W., & Engstlerschooler, T. Y. (1990). Verbal Overshadowing of Visual Memories: Some Things Are Better Left Unsaid.. Cognitive Psychology, 22(1), 36-71.

    While much previous research suggests that verbal processing typically 通常 improves memory performance, the present results reliably demonstrated that verbalizing memory for the appearance of a face can actually impair subsequent recognition. In addition, a systematic examination of the parameters mediating this effect has eliminated the following hypotheses:


     (1) The hypothesis that negative effects of verbalization result from incomplete encoding of visual details was ruled out because verbalization occurred after the visual stimuli had already been encoded.
    由于言语表达在视觉刺激已被编码之后才出现,因此排除了由于视觉细节的不完整编码而导致的言语化负面影响之假设。

    (2) The hypothesis that the negative effects of verbalization are a byproduct of visual recall was ruled out by the observation that visualizing a face does not affect subsequent performance.

     (3) The hypothesis that the negative effects of verbalization are limited to processes that are specific to faces was excluded by showing that color memory is similarly affected by verbalization. 

    (4) The hypothesis that the negative effects of verbalization are due to subjects’ exclusive reliance on their verbatim descriptions was inconsistent with the lack of a relationship between description quality and recognition performance. 

    (5) The hypothesis that verbalization effects are limited to a specific face was ruled out by the observation that the effects generalize to a number of faces.

     (6) The hypothesis that verbalization impairment reflects some idiosyncracy of the present paradigm was ruled out by the observation that verbalization had a very different effect on memory for statements. 

    (7) The hypothesis that verbalization causes subjects to temporarily adopt a general verbal strategy for remembering faces was eliminated by showing that the negative effects persist for at least 2 days. 

    (8) The hypothesis that verbalization distorts the original visual memory representation was eliminated by the observation that limiting recognition time alleviates the impairment.
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