Learning-Induced Plasticity Enhances the Capacity of Visual Working Memory.,Psychological Science

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Learning-Induced Plasticity Enhances the Capacity of Visual Working Memory.
Psychological Science ( IF 10.172 ) Pub Date : 2023-08-31 , DOI: 10.1177/09567976231192241
Markus Conci _{1,

2} , Nuno Busch ₁ , Robert P Rozek ₁ , Hermann J Müller _{1,

2}

Affiliation

Visual working memory (VWM) is limited in capacity, though memorizing meaningful objects may refine this limitation. However, meaningful and meaningless stimuli typically differ perceptually, and objects' associations with meaning are usually already established outside the laboratory, potentially confounding experimental findings. Here, in two experiments with young adults (N = 45 and N = 20), we controlled for these influences by having observers actively learn associations of (for them) initially meaningless stimuli: Chinese characters, half of which were consistently paired with pictures of animals or everyday objects in a learning phase. This phase was preceded and followed by a (pre- and postlearning) change-detection task to assess VWM performance. The results revealed that short-term retention was enhanced after learning, particularly for meaning-associated characters, although participants did not quite reach the accuracy level attained by native Chinese observers (young adults, N = 20). These results thus provide direct experimental evidence that participants' VWM of objects is boosted by them having acquired a long-term-memory association with meaning.

更新日期：2023-08-31

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