Adaptation to invisible motion results in low-level but not high-level aftereffects
Adaptation to invisible motion results in low-level but not high-level aftereffects
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DOI：
10.1167/8.11.7
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发表时间：
2008-01-01
影响因子：
1.8
通讯作者：
Watanabe, Masataka
中科院分区：
文献类型：
--
作者：
Maruya, Kazushi;Watanabe, Hiroki;Watanabe, Masataka
在长时间暴露于运动刺激后，在不包含一致运动的刺激中感知到错觉运动，这种现象称为运动后效（MAE）。在这项研究中，我们测试了MAES下的双眼抑制，使运动适配器不可见的整个适应期。我们发展了一个连续的变体。灰抑制方法，以可靠地抑制持续时间长于几十秒的目标运动刺激。在这里，我们问是否运动系统的功能，在没有知觉的情况下，通过测量MAE，一个问题很难解决使用双目竞争，伴随着可见和不可见之间的转换的感知。结果表明，当适配器和测试刺激呈现在同一只眼睛时，静态和动态测试的MAE都被隐形适配器衰减。相反，当测试图案呈现给另一只眼睛时，在不可见适配器条件下观察到动态MAE。这些结果表明，低水平的适应生存下，总的双眼抑制，以前的研究预测的发现。相反，在动态MAE中眼间转移的消失表明，当运动适配器不可见时，高级运动检测器不工作。
After prolonged exposure to moving stimuli, illusory motion is perceived in stimuli that do not contain consistent motion, a phenomenon termed the motion aftereffect (MAE). In this study, we tested MAEs under binocular suppression that renders the motion adaptor invisible for the entire adaptation period. We developed a variant of the continuous. ash suppression method to reliably suppress target motion stimuli for durations longer than several tens of seconds. Here, we ask whether motion systems are functional in the absence of perception by measuring the MAE, a question difficult to address using binocular rivalry that accompanies a switch of percept between visible and invisible. Results show that both the MAEs with static and dynamic tests are attenuated with an invisible adaptor when the adaptor and the test stimulus are presented to the same eye. In contrast, when the test pattern was presented to the other eye, the dynamic MAE was observed in invisible adaptor conditions. These results indicate that low-level adaptation survives under total binocular suppression, a finding predicted by previous studies. In contrast, disappearance of interocular transfer in the dynamic MAE suggests that a high-level motion detector does not operate when the motion adaptor is rendered invisible.