Multisensory Facilitation of Working Memory Training.

Anja Pahor, Cindy Collins, Rachel N Smith, Austin Moon, Trevor Stavropoulos, Ilse Silva, Elaine Peng, Susanne M Jaeggi, Aaron R Seitz
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Abstract

Research suggests that memorization of multisensory stimuli benefits performance compared to memorization of unisensory stimuli; however, little is known about multisensory facilitation in the context of working memory (WM) training and transfer. To investigate this, 240 adults were randomly assigned to an N-back training task that consisted of visual-only stimuli, alternating visual and auditory blocks, or audio-visual (multisensory) stimuli, or to a passive control group. Participants in the active groups completed 13 sessions of N-back training (6.7 hours in total) and all groups completed a battery of WM tasks: untrained N-back tasks, Corsi Blocks, Sequencing, and Symmetry Span. The Multisensory group showed similar training N-level gain compared to the Visual Only group, and both of these groups outperformed the Alternating group on the training task. As expected, all three active groups significantly improved on untrained visual N-back tasks compared to the Control group. In contrast, the Multisensory group showed significantly greater gains on the Symmetry Span task and to a certain extent on the Sequencing task compared to other groups. These results tentatively suggest that incorporating multisensory objects in a WM training protocol can benefit performance on the training task and potentially facilitate transfer to complex WM span tasks.

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多感官促进工作记忆训练
研究表明,与记忆单感官刺激相比,记忆多感官刺激有利于提高学习成绩;然而,人们对工作记忆(WM)训练和迁移中的多感官促进作用知之甚少。为了研究这个问题,240 名成年人被随机分配到一个由纯视觉刺激、视觉和听觉块交替或视听(多感官)刺激组成的 N 向后训练任务中,或者被分配到一个被动对照组中。主动组的参与者完成了 13 节 N-back训练课(共 6.7 小时),所有组别都完成了一系列 WM 任务:未经训练的 N-back任务、Corsi Block、排序和对称跨度。与仅视觉组相比,多感官组显示出相似的训练 N 级增益,而这两组在训练任务中的表现均优于交替组。不出所料,与对照组相比,所有三个主动组在未经训练的视觉 N 回任务上都有显著提高。相比之下,多感官组在 "对称跨度 "任务和一定程度上在 "排序 "任务上的表现明显优于其他组别。这些结果初步表明,在 WM 训练方案中加入多感官对象可以提高训练任务的成绩,并有可能促进向复杂 WM 跨度任务的迁移。
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