The influence of visual perspective on the somatosensory steady-state response during pain observation.
The influence of visual perspective on the somatosensory steady-state response during pain observation.
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DOI：
10.3389/fnhum.2013.00849
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发表时间：
2013
影响因子：
2.9
通讯作者：
Jackson PL
中科院分区：
文献类型：
--
作者：
Canizales DL;Voisin JI;Michon PE;Roy MA;Jackson PL
对他人疼痛的观察和评估会激活参与实际疼痛体验的部分神经元网络，包括那些促进疼痛感觉辨别维度的区域。这在很大程度上被解释为证据表明，部分痛苦经历可以通过替代方式分享。在这里，我们研究了看到他人疼痛的视觉视角对皮层对连续 25 Hz 无痛体感刺激的反应（体感稳态反应：SSSR）的影响。基于共享表示框架，我们预计在疼痛观察过程中，第一人称视觉视角（1PP）比第三人称视觉视角（3PP）会产生更多的皮质活动变化。 20 名健康成年人被要求对一系列描绘手部疼痛或非疼痛场景的伪动态图片进行评分，这些图片以 1PP（0-45° 角）或 3PP（180° 角）呈现，同时用 128 电极脑电图系统测量大脑活动的变化。评级表明，从 1PP 观察到的相同场景平均比从 3PP 观察到的更痛苦。正如之前的工作所预期的那样，在顶中央皮层的左侧尾部（刺激侧的对侧）受到刺激后，SSSR 反应下降。此外，与 3PP 相比，1PP 呈现疼痛情况时 SSSR 之间的差异更大。总之，这些结果表明，观看者和观察到的场景之间的视觉空间一致性与对疼痛的更高主观评价和观察到的疼痛的体感表征的调节增加有关。这些发现讨论了视觉视角在疼痛交流和同理心中的潜在作用。
The observation and evaluation of other’s pain activate part of the neuronal network involved in the actual experience of pain, including those regions subserving the sensori-discriminative dimension of pain. This was largely interpreted as evidence showing that part of the painful experience can be shared vicariously. Here, we investigated the effect of the visual perspective from which other people’s pain is seen on the cortical response to continuous 25 Hz non-painful somatosensory stimulation (somatosensory steady-state response: SSSR). Based on the shared representation framework, we expected first-person visual perspective (1PP) to yield more changes in cortical activity than third-person visual perspective (3PP) during pain observation. Twenty healthy adults were instructed to rate a series of pseudo-dynamic pictures depicting hands in either painful or non-painful scenarios, presented either in 1PP (0–45° angle) or 3PP (180° angle), while changes in brain activity was measured with a 128-electode EEG system. The ratings demonstrated that the same scenarios were rated on average as more painful when observed from the 1PP than from the 3PP. As expected from previous works, the SSSR response was decreased after stimulus onset over the left caudal part of the parieto-central cortex, contralateral to the stimulation side. Moreover, the difference between the SSSR was of greater amplitude when the painful situations were presented from the 1PP compared to the 3PP. Together, these results suggest that a visuospatial congruence between the viewer and the observed scenarios is associated with both a higher subjective evaluation of pain and an increased modulation in the somatosensory representation of observed pain. These findings are discussed with regards to the potential role of visual perspective in pain communication and empathy.
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影响因子：
5.7
作者：
Dosch, M.;Loenneker, T.;Klaver, P.
通讯作者：
Klaver, P.
影响因子：
2
作者：
Cromwell, Howard C.;Mears, Ryan P.;Boutros, Nash N.
通讯作者：
Boutros, Nash N.
影响因子：
2.6
作者：
Kaiser, Stefan;Walther, Stephan;Vogeley, Kai
通讯作者：
Vogeley, Kai
影响因子：
5.7
作者：
Hampshire A;Chamberlain SR;Monti MM;Duncan J;Owen AM
通讯作者：
Owen AM
DOI：
10.1093/cercor/bhq187
发表时间：
2011-05
期刊：
Cerebral cortex (New York, N.Y. : 1991)
影响因子：
--
作者：
Dodds CM;Morein-Zamir S;Robbins TW
通讯作者：
Robbins TW