A comparison of masking by visual and transcranial magnetic stimulation: implications for the study of conscious and unconscious visual processing
A comparison of masking by visual and transcranial magnetic stimulation: implications for the study of conscious and unconscious visual processing
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DOI：
10.1016/j.concog.2004.08.007
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发表时间：
2004-12-01
影响因子：
2.4
通讯作者：
Ogmen, H
中科院分区：
文献类型：
--
作者：
Breitmeyer, BG;Ro, T;Ogmen, H
视觉刺激以及经颅磁刺激（TMS）可用于：（1）抑制目标的可见性，以及（2）恢复已被另一个面罩抑制的目标的可见性。因此，这两种类型的刺激提供了有用的方法来研究微观的物体知觉。我们首先审查的过程之间的相似性的证据，TMS面具和视觉面具可以抑制目标的可见性或恢复这种抑制的可见性。然而，我们也指出了一个显着的差异，具有重要意义的时间过程的无意识和有意识的视觉信息处理的研究和所涉及的过程的理论帐户。我们提出的证据和论点表明：（a）视觉掩蔽技术，通过揭示目标掩蔽和目标恢复的更详细方面，支持视觉掩蔽和视觉感知的理论方法，该方法必须考虑两个独立神经通道或处理流中的活动，并且，作为推论，（B）在视觉掩蔽方法成熟的当前阶段，通过在这些通路上以更高度可指定的方式起作用，提供TMS面具无法提供的关于形态感知的微观发生的信息。(C)2004年爱思唯尔公司All rights reserved.
Visual stimuli as well as transcranial magnetic stimulation (TMS) can be used: (1) to suppress the visibility of a target and (2) to recover the visibility of a target that has been suppressed by another mask. Both types of stimulation thus provide useful methods for studying the microgenesis of object perception. We first review evidence of similarities between the processes by which a TMS mask and a visual mask can either suppress the visibility of targets or recover such suppressed visibility. However, we then also point out a significant difference that has important implications for the study of the time course of unconscious and conscious visual information processing and for theoretical accounts of the processes involved. We present evidence and arguments showing: (a) that visual masking techniques, by revealing more detailed aspects of target masking and target recovery, support a theoretical approach to visual masking and visual perception that must take into account activities in two separate neural channels or processing streams and, as a corollary, (b) that at the current stage of methodological sophistication visual masks, by acting in more highly specifiable ways on these pathways, provide information about the microgenesis of form perception not available with TMS masks. (C) 2004 Elsevier Inc. All rights reserved.