Stimulus variation-based training enhances artificial grammar learning

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 st...

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Main Authors: Rachel Schiff, Pesi Ashkenazi, Shani Kahta, Ayelet Sasson
Format: Article
Language:English
Published: Elsevier 2021-03-01
Series:Acta Psychologica
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0001691821000020
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author Rachel Schiff
Pesi Ashkenazi
Shani Kahta
Ayelet Sasson
author_facet Rachel Schiff
Pesi Ashkenazi
Shani Kahta
Ayelet Sasson
author_sort Rachel Schiff
collection DOAJ
description 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.
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spelling doaj.art-9da5583bfc694e58a31648deaf9f27d12022-12-21T22:41:03ZengElsevierActa Psychologica0001-69182021-03-01214103252Stimulus variation-based training enhances artificial grammar learningRachel Schiff0Pesi Ashkenazi1Shani Kahta2Ayelet Sasson3Corresponding author.; Learning Disabilities Studies, School of Education, Bar-Ilan University, 52900 Ramat-Gan, IsraelLearning Disabilities Studies, School of Education, Bar-Ilan University, 52900 Ramat-Gan, IsraelLearning Disabilities Studies, School of Education, Bar-Ilan University, 52900 Ramat-Gan, IsraelLearning Disabilities Studies, School of Education, Bar-Ilan University, 52900 Ramat-Gan, IsraelThe 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.http://www.sciencedirect.com/science/article/pii/S0001691821000020Implicit statistical learningStimulus variationStimulus diversityArtificial grammar learning
spellingShingle Rachel Schiff
Pesi Ashkenazi
Shani Kahta
Ayelet Sasson
Stimulus variation-based training enhances artificial grammar learning
Acta Psychologica
Implicit statistical learning
Stimulus variation
Stimulus diversity
Artificial grammar learning
title Stimulus variation-based training enhances artificial grammar learning
title_full Stimulus variation-based training enhances artificial grammar learning
title_fullStr Stimulus variation-based training enhances artificial grammar learning
title_full_unstemmed Stimulus variation-based training enhances artificial grammar learning
title_short Stimulus variation-based training enhances artificial grammar learning
title_sort stimulus variation based training enhances artificial grammar learning
topic Implicit statistical learning
Stimulus variation
Stimulus diversity
Artificial grammar learning
url http://www.sciencedirect.com/science/article/pii/S0001691821000020
work_keys_str_mv AT rachelschiff stimulusvariationbasedtrainingenhancesartificialgrammarlearning
AT pesiashkenazi stimulusvariationbasedtrainingenhancesartificialgrammarlearning
AT shanikahta stimulusvariationbasedtrainingenhancesartificialgrammarlearning
AT ayeletsasson stimulusvariationbasedtrainingenhancesartificialgrammarlearning