文章基本信息

标题：Modality-specific organization in the representation of sensorimotor sequences
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作者：Boutin, Arnaud ; Massen, Cristina ; Heuer, Herbert 等
期刊名称：Frontiers in Psychology
电子版ISSN：1664-1078
出版年度：2013
卷号：4
页码：1-9
DOI：10.3389/fpsyg.2013.00937
出版社：Frontiers Media
摘要：Sensorimotor representations of movement sequences are hierarchically organized. Here we test the effects of different stimulus modalities on such organizations. In the visual group, participants responded to a repeated sequence of visually presented stimuli by depressing spatially compatible keys on a response pad. In the auditory group, learners were required to respond to auditorily presented stimuli, which had no direct spatial correspondence with the response keys: the lowest pitch corresponded to the leftmost key and the highest pitch to the rightmost key. We demonstrate that hierarchically and auto-organised sensorimotor representations are developed through practice, which are specific both to individuals and stimulus modalities. These findings highlight the dynamic and sensory-specific modulation of chunk processing during sensorimotor learning – sensorimotor chunking – and provide evidence that modality-specific mechanisms underlie the hierarchical organization of sequence representations.
关键词：Sensorimotor representation; Stimulus modality; chunking; Implicit/Explicit processing; sequence learning