Conscious awareness of a visuo-proprioceptive mismatch: Effect on cross-sensory recalibration.
Conscious awareness of a visuo-proprioceptive mismatch: Effect on cross-sensory recalibration.
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DOI：
10.3389/fnins.2022.958513
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发表时间：
2022
影响因子：
4.3
通讯作者：
Block, Hannah J.
中科院分区：
文献类型：
--
作者：
Hsiao, Anna;Lee-Miller, Trevor;Block, Hannah J.
关键词：
大脑利用视觉和位置感觉（本体感觉）来估计手的位置。视觉和本体感受估计之间的关系是有点灵活：视觉信息的食指可以从本体感受信息空间移位，导致视觉和本体感受单峰位置估计的跨感官重新校准。根据因果推理框架，当单峰估计归因于共同原因并被整合时，发生重新校准。如果发现单独的原因，则应减少重新校准。在这里，我们评估了视觉本体感受的重新校准，以应对在左食指指尖逐渐的视觉本体感受不匹配。实验1询问有意识地感知到70 mm不匹配的频率与没有不匹配时相比，以及意识是否与减少的视觉本体感受重新校准有关，与因果推理预测一致。然而，有意识的抵消意识很少发生。实验2测试了一个更大的位移，140毫米，并要求参与者对他们的看法更频繁，包括在70毫米。实验3证实，参与者在估计距离在2D虚拟现实显示是公正的。结果表明，有意识地意识到不匹配确实与因果推理框架预测的减少的跨感觉重新校准有关，但这仅在较高的不匹配幅度（70-140 mm）时才清楚。在较小的偏移（高达70 mm），有意识的感知偏移可能不会超越无意识的信念，在一个共同的原因，也许是因为感知的偏移量是在参与者的自然感官偏见的范围。这些发现突出了手部知觉中有意识与多感觉过程的相互作用。
The brain estimates hand position using vision and position sense (proprioception). The relationship between visual and proprioceptive estimates is somewhat flexible: visual information about the index finger can be spatially displaced from proprioceptive information, resulting in cross-sensory recalibration of the visual and proprioceptive unimodal position estimates. According to the causal inference framework, recalibration occurs when the unimodal estimates are attributed to a common cause and integrated. If separate causes are perceived, then recalibration should be reduced. Here we assessed visuo-proprioceptive recalibration in response to a gradual visuo-proprioceptive mismatch at the left index fingertip. Experiment 1 asked how frequently a 70 mm mismatch is consciously perceived compared to when no mismatch is present, and whether awareness is linked to reduced visuo-proprioceptive recalibration, consistent with causal inference predictions. However, conscious offset awareness occurred rarely. Experiment 2 tested a larger displacement, 140 mm, and asked participants about their perception more frequently, including at 70 mm. Experiment 3 confirmed that participants were unbiased at estimating distances in the 2D virtual reality display. Results suggest that conscious awareness of the mismatch was indeed linked to reduced cross-sensory recalibration as predicted by the causal inference framework, but this was clear only at higher mismatch magnitudes (70–140 mm). At smaller offsets (up to 70 mm), conscious perception of an offset may not override unconscious belief in a common cause, perhaps because the perceived offset magnitude is in range of participants’ natural sensory biases. These findings highlight the interaction of conscious awareness with multisensory processes in hand perception.
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影响因子：
2
作者：
Berger, Daniel R.;Buelthoff, Heinrich H.
通讯作者：
Buelthoff, Heinrich H.
影响因子：
5.3
作者：
Gentile, Giovanni;Guterstam, Arvid;Ehrsson, H. Henrik
通讯作者：
Ehrsson, H. Henrik
影响因子：
1.6
作者：
Block, Hannah J.;Sexton, Brandon M.
通讯作者：
Sexton, Brandon M.
影响因子：
3
作者：
Beauchamp, Michael S.;Pasalar, Siavash;Ro, Tony
通讯作者：
Ro, Tony
触摸橡胶手：身体所有权的感觉与多感官大脑区域的活动有关。
DOI：
10.1523/jneurosci.0800-05.2005
发表时间：
2005-11-09
期刊：
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子：
--
作者：
Ehrsson HH;Holmes NP;Passingham RE
通讯作者：
Passingham RE