VISUAL EVOKED-POTENTIALS TO ILLUSORY REVERSALS OF THE NECKER CUBE
VISUAL EVOKED-POTENTIALS TO ILLUSORY REVERSALS OF THE NECKER CUBE
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DOI：
10.1111/j.1469-8986.1988.tb00976.x
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发表时间：
1988-03-01
期刊：
影响因子：
3.7
通讯作者：
SQUIRES, NK
中科院分区：
文献类型：
--
作者：
ODONNELL, BF;HENDLER, T;SQUIRES, NK
感觉适应和认知评价被认为是错觉图形反转的解释。研究了内克尔立方体的感知方向变化对视觉诱发电位（VEP）的影响，以验证这两个假设。与知觉反转和Necker立方体的非反转相关的VEP与一系列物理变化的立方体图形引起的VEP进行了比较。未检测到与适应效应一致的早期VEP成分的振幅差异。这两种类型的逆转都与晚期正分量（400-700 ms）相关，在错觉条件下振幅较小。后期积极的错觉逆转也区分了广泛的（200-700毫秒）正面的组成部分，在额叶和中央记录网站，这是缺席的OZ。这些研究结果表明，错觉反转比物理反转更难区分，需要额外的认知资源进行评估。
Sensory adaptation and cognitive evaluation have been proposed as explanations of illusory figure reversals. The effect of variations in the perceive orientation of a Necker cube on visual evoked potentials (VEPs) was studied to test these two hypotheses. VEPs associatedwith perceptual reversals and non-reversals of a Necker cube were compared with VEPs elicited by a sequence of physically varying cubical figures. Amplitude differences in the early VEP components consistent with adaptation effects were not detected. Both types of reversals were associated with a late positive component (400-700 ms), which was smaller in amplitude on the illusory condition. The late positivity to illusory reversals was also distinguished by a broad (200-700 ms) positive component over frontal and central recording sites which was absent over OZ. These findings suggest that illusory reversals are more difficult to discriminate than physical reversals, and require additional cognitive resources for evaluation.