A comparison of the temporal and spatial properties of trans-saccadic perceptual recalibration and saccadic adaptation
A comparison of the temporal and spatial properties of trans-saccadic perceptual recalibration and saccadic adaptation
复制标题
跨眼跳感知重新校准和眼跳适应的时间和空间特性的比较
DOI：
10.1167/jov.20.4.2
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发表时间：
2020
影响因子：
1.8
通讯作者：
Gegenfurtner
中科院分区：
文献类型：
--
作者：
Valsecchi;Cassanello;Herwig;Gegenfurtner
反复暴露于在扫视目标的位置中的一致的跨扫视步骤可靠地产生扫视增益的变化，这是被称为扫视适应的公认的跨扫视运动学习现象。跨扫视变化也可以产生感知效果。具体来说，正在进行中央凹的对象的大小的系统性增加或减小改变中央凹与外围之间的感知等效大小。先前的研究表明，这种对感知大小的重新校准可以在几十次试验中建立，持续一夜，并在整个半野中推广。在目前的研究中，我们使用一种新的调整范式来表征时间和空间的学习过程，对这种形式的重新校准，并直接比较其属性的扫视适应。我们观察到，在跨扫视变化的幅度中的正弦振荡在所报道的外周尺寸中产生正弦振荡，具有10次试验以下的滞后。这在性质上类似于在扫视适应的情况下所观察到的。我们还测试了学习是否被推广到镜像位置的大小重新校准和眼跳适应。这里的结果是明显不同的，显示几乎完全概括的重新校准和扫视适应没有概括。我们的结论是，跨扫视变化的知觉和视觉后果依赖于学习机制，是不同的，但在类似的时间尺度上发展。
Repeated exposure to a consistent trans-saccadic step in the position of the saccadic target reliably produces a change of saccadic gain, a well-established trans-saccadic motor learning phenomenon known as saccadic adaptation. Trans-saccadic changes can also produce perceptual effects. Specifically, a systematic increase or decrease in the size of the object that is being foveated changes the perceptually equivalent size between fovea and periphery. Previous studies have shown that this recalibration of perceived size can be established within a few dozen trials, persists overnight, and generalizes across hemifields. In the current study, we use a novel adjustment paradigm to characterize both temporally and spatially the learning process that subtends this form of recalibration, and directly compare its properties to those of saccadic adaptation. We observed that sinusoidal oscillations in the amplitude of the trans-saccadic change produce sinusoidal oscillations in the reported peripheral size, with a lag of under 10 trials. This is qualitatively similar to what has been observed in the case of saccadic adaptation. We also tested whether learning is generalized to the mirror location on the opposite hemifield for both size recalibration and saccade adaptation. Here the results were markedly different, showing almost complete generalization for recalibration and no generalization for saccadic adaptation. We conclude that perceptual and visuomotor consequences of trans-saccadic changes rely on learning mechanisms that are distinct but develop on similar time scales.
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影响因子：
2.9
作者：
Zimmermann E;Lappe M
通讯作者：
Lappe M
DOI：
10.1111/nyas.12672
发表时间：
2015-01-01
期刊：
COMPETITIVE VISUAL PROCESSING ACROSS SPACE AND TIME: ATTENTION, MEMORY, AND PREDICTION
影响因子：
--
作者：
Herwig, Arvid;Weiss, Katharina;Schneider, Werner X.
通讯作者：
Schneider, Werner X.
影响因子：
4.1
作者：
Herwig, Arvid;Schneider, Werner X.
通讯作者：
Schneider, Werner X.
影响因子：
1.8
作者：
Garaas TW;Pomplun M
通讯作者：
Pomplun M
通过可预测的尺寸变化动态重新校准中央凹和周边的感知尺寸
影响因子：
9.2
作者：
Matteo Valsecchi;K. Gegenfurtner
通讯作者：
K. Gegenfurtner