The development of long-term lexical representations through Hebb repetition learning
The development of long-term lexical representations through Hebb repetition learning
复制标题
通过赫布重复学习发展长期词汇表征
DOI：
10.1016/j.jml.2012.07.001
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发表时间：
2012
影响因子：
4.3
通讯作者：
W. Duyck
中科院分区：
文献类型：
--
作者：
A. Szmalec;Mike Page;W. Duyck
本研究运用Hebb重复范式，阐明了短时记忆和长时记忆在新词学习中的作用。在实验1中，参与者回忆了视觉呈现的音节序列(例如，la-va-bu-sa-fa-ra-re-si-di)，每三次实验重复一个特定的(Hebb)序列。至关重要的是，这些Hebb序列包含了现有荷兰语基词(例如laabu-waabo[厨房水槽])的三个拼写非单词邻居。24小时后，同一组受试者进行了两次听觉词汇化测试，测试内容涉及实际的荷兰语基本词汇(例如，avabo、Safari、Residu)。两种测试都发现这些荷兰语基本词的反应时比匹配的控制词慢，这反映了基本词和Hebb序列之间的词汇竞争，从而证明了Hebb序列的词汇参与。在实验2中，我们随后使用Hebb范式作为词形学习的模拟，以调查创造新的词汇记忆是否需要睡眠。早先的研究结果表明，通宵睡眠在词汇巩固中起着至关重要的作用，而目前的研究结果表明，Hebb对语音序列的学习仅仅通过时间的推移在心理词典中创造了新的词形表征，而睡眠并没有起到必要的作用。
This study clarifies the involvement of short- and long-term memory in novel word-form learning, using the Hebb repetition paradigm. In Experiment 1, participants recalled sequences of visually presented syllables (e.g., la-va-bu-sa-fa-ra-re-si-di), with one particular (Hebb) sequence repeated on every third trial. Crucially, these Hebb sequences contained three orthographic nonword neighbors of existing Dutch base-words (e.g., lavabu – lavabo [kitchen sink]). Twenty-four hours later, the same participants performed two auditory lexicalization tests involving the actual Dutch base-words (e.g., lavabo, safari, residu). Both tests yielded slower reaction times for these Dutch base-words compared with matched control words, which reflects lexical competition between the base-words and the Hebb sequences, therefore demonstrating lexical engagement of the Hebb sequences. In Experiment 2, we subsequently used the Hebb paradigm as an analogue of word-form learning, in order to investigate whether the creation of novel lexical memories requires sleep. Whereas earlier findings indicate that overnight sleep plays a crucial role in lexical consolidation, the current results show that Hebb learning of phonological sequences creates novel word-forms representations in the mental lexicon by the mere passage of time, with sleep playing no necessary role.