Feature codes in implicit sequence learning: perceived stimulus locations transfer to motor response locations
Feature codes in implicit sequence learning: perceived stimulus locations transfer to motor response locations
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DOI：
10.1007/s00426-018-0980-0
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发表时间：
2020-02-01
影响因子：
2.3
通讯作者：
Eberhardt, Katharina
中科院分区：
文献类型：
--
作者：
Haider, Hilde;Esser, Sarah;Eberhardt, Katharina
隐式序列学习研究中的一个重要问题是如何表示学习到的信息。在早期的模型中，内隐学习的表征被视为纯粹的运动或感知。这些不同的概念后来被多维模型集成，例如 Keele 等人的双系统模型。 （《心理学评论》110(2):316-339, 2003）。根据该模型，只要每个序列仅包含一个维度（例如形状、颜色或响应位置），就可以并行学习不同类型的序列信息。然而，术语“维度”尚未明确，因为所涉及的学习模块是否仅限于运动或感知信息仍然是一个悬而未决的问题。本研究旨在表明内隐学习系统的模块并非特定于运动或感知处理。相反，每个模块处理一个抽象特征代码，该代码代表与响应和感知相关的信息。在两个实验中，我们表明感知刺激位置序列会转移到运动反应位置序列。该结果表明，仅仅感知顺序特征就会自动导致相应运动特征的激活，支持抽象特征代码作为内隐学习系统的基本模块的概念。然而，只有当任务指令强调刺激位置的编码而不是颜色特征的编码时，才能获得此结果。将考虑指导任务集的重要性来讨论此限制。
An important question in implicit sequence learning research is how the learned information is represented. In earlier models, the representations underlying implicit learning were viewed as being either purely motor or perceptual. These different conceptions were later integrated by multidimensional models such as the Dual System Model of Keele et al. (Psychol Rev 110(2):316-339, 2003). According to this model, different types of sequential information can be learned in parallel, as long as each sequence comprised only one single dimension (e.g., shapes, colors, or response locations). The term dimension, though, is underspecified as it remains an open question whether the involved learning modules are restricted to motor or to perceptual information. This study aims to show that the modules of the implicit learning system are not specific to motor or perceptual processing. Rather, each module processes an abstract feature code which represents both response- and perception-related information. In two experiments, we showed that perceiving a stimulus-location sequence transferred to a motor response-location sequence. This result shows that the mere perception of a sequential feature automatically leads to an activation of the respective motor feature, supporting the notion of abstract feature codes being the basic modules of the implicit learning system. This result could only be obtained, though, when the task instructions emphasized the encoding of the stimulus-locations as opposed to an encoding of the color features. This limitation will be discussed taking into account the importance of the instructed task set.