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Stimulus variation-based training enhances artificial grammar learning
Acta Psychologica ( IF 2.1 ) Pub Date : 2021-02-12 , DOI: 10.1016/j.actpsy.2021.103252
Rachel Schiff , Pesi Ashkenazi , Shani Kahta , Ayelet Sasson

The current study was designed to explore whether statistical learning ability is affected by the diversity of the stimulus set used in the training phase. The effect of stimulus diversity was assessed by controlling and manipulating the number of exposures to a given set and the number of unique strings presented to the learner during the training phase. 147 students participated in two studies. In the unvaried stimulus study, 71 participants learned the same basic set of 15 exemplars, once(15 × 1 exposure), twice (15 × 2 exposures = 30 total strings) and 3 times (15 × 3 exposures = 45 total strings). In the varied stimulus study, 75 participants learned 15, 30 and 45, all of which were unique, unrepeated exemplars. All groups were asked to classify test strings for their grammaticality following training. Results of the d’ measures in the unvaried stimulus study indicate similar performance across the groups. Conversely, the results of the varied stimulus study show that the group presented with 45 unique strings performed significantly better than the baseline group (15 strings). Analysis of the differences across the equivalent groups in the two studies (15 × 2 exposures vs. 30 unique strings and 15 × 3 exposures vs. 45 unique strings) indicates differences in performance only between the group who was presented with the same 15 strings three times and the group presented with 45 unrepeated strings. Taken together, our results shed additional light on the central role of stimulus variation in Artificial Grammar Learning.



中文翻译:

基于刺激变异的训练增强了人工语法学习

当前的研究旨在探讨统计学习能力是否受到培训阶段所使用的刺激集多样性的影响。通过控制和操纵给定集合的暴露次数以及在培训阶段呈现给学习者的独特字符串的数目,可以评估刺激多样性的效果。147名学生参加了两项研究。在无变量刺激研究中,有71名参与者学习了相同的一组基本的15个示例,一次(15×1次曝光),两次(15×2次曝光= 30个总字符串)和3次(15×3次曝光= 45个总字符串)。在多样化的刺激研究中,有75名参与者学习了15、30和45,所有这些都是独特的,未重复的范例。在训练后,要求所有组将测试字符串的语法分类。不变刺激研究中d'量度的结果表明,各组的表现相似。相反,各种刺激研究的结果表明,呈现45个独特弦的组的表现明显优于基线组(15个弦)。在两项研究中,等效组之间的差异进行了分析(15×2次曝光对比30个唯一字符串,而15×3次曝光对比45个唯一字符串)表明,只有在使用相同的15条弦的情况下,三个演奏组之间的表现差异次,小组展示了45条未重复的弦。两者合计,我们的研究结果进一步阐明了刺激变异在人工语法学习中的核心作用。各种刺激研究的结果表明,呈现45个独特弦的组的演奏效果明显优于基线组(15个弦)。在两项研究中,等效组之间的差异进行了分析(15×2次曝光对比30个唯一字符串,而15×3次曝光对比45个唯一字符串)表明,只有在使用相同的15条弦的情况下,三个演奏组之间的表现差异次,小组展示了45条未重复的弦。两者合计,我们的研究结果进一步阐明了刺激变异在人工语法学习中的核心作用。各种刺激研究的结果表明,呈现45个独特弦的组的演奏效果明显优于基线组(15个弦)。在两项研究中,等效组之间的差异进行了分析(15×2次曝光对比30个唯一字符串,而15×3次曝光对比45个唯一字符串)表明,只有在使用相同的15条弦的情况下,三个演奏组之间的表现差异次,小组展示了45条未重复的弦。两者合计,我们的研究结果进一步阐明了刺激变异在人工语法学习中的核心作用。30个唯一的字符串和15×3次曝光与45个唯一的字符串)表明,仅在三个使用相同的15个字符串的组和五个不重复的字符串的组之间,性能存在差异。两者合计,我们的研究结果进一步阐明了刺激变异在人工语法学习中的核心作用。30个唯一的字符串和15×3次曝光与45个唯一的字符串)表明,仅在三个使用相同的15个字符串的组和五个不重复的字符串的组之间,性能存在差异。两者合计,我们的研究结果进一步阐明了刺激变异在人工语法学习中的核心作用。

更新日期:2021-02-12
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