Competition for attentional resources between low spatial frequency content of emotional images and a foreground task in early visual cortex.
Competition for attentional resources between low spatial frequency content of emotional images and a foreground task in early visual cortex.
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情感图像的低空间频率内容与早期视觉皮层的前景任务之间对注意力资源的竞争
DOI：
10.1111/psyp.12792
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发表时间：
2017
期刊：
影响因子：
3.7
通讯作者：
Gundlach
中科院分区：
文献类型：
--
作者：
Müller;Gundlach
低空间频率（LSF）图像内容已被提出通过将注意力资源偏向视觉皮质中的情感内容的大细胞通路在情感内容提取中发挥上级功能作用。我们调查了情绪不愉快的复杂图像，无论是未经过滤或LSF内容仅在背景中，而受试者执行前景任务将撤回更多的注意力资源的任务相比，无情绪，中性的图像（分心范例）。我们测量了由前景任务的闪烁刺激驱动的稳态视觉诱发电位（SSVEP）。与中性图像相比，未过滤的不愉快图像导致SSVEP振幅显著降低。在LSF背景图像中未发现统计学显著差异。在行为控制实验中，我们发现未过滤和LSF图片之间的复杂性评级没有显着差异。内容识别对于未过滤和LSF图片是可能的（正确响应> 74%）。另一项EEG研究检查了复杂图像的典型情绪相关成分，这些复杂图像可以是未过滤的、LSF或高空间频率（HSF，作为额外的对照）过滤的、不愉快的和中性的图像。我们发现情绪效价的主效应在早期的后验消极中有显著的作用。晚期阳性电位差仅见于未滤波和HSF图像。结果表明，虽然LSF的内容是足够的，让内容和情感线索提取时，图像单独呈现，LSF的内容是不够突出，作为情绪干扰，撤回注意力资源的前景任务在早期视觉皮层。
Low spatial frequency (LSF) image content has been proposed to play a superior functional role in emotional content extraction via the magnocellular pathway biasing attentional resources toward emotional content in visual cortex. We investigated whether emotionally unpleasant complex images that were presented either unfiltered or with LSF content only in the background while subjects performed a foreground task will withdraw more attentional resources from the task compared to unemotional, neutral images (distraction paradigm). We measured steady‐state visual evoked potentials (SSVEPs) driven by flickering stimuli of a foreground task. Unfiltered unpleasant images resulted in a significant reduction of SSVEP amplitude compared to neutral images. No statistically significant differences were found with LSF background images. In a behavioral control experiment, we found no significant differences for complexity ratings between unfiltered and LSF pictures. Content identification was possible for unfiltered and LSF picture (correct responses > 74%). An additional EEG study examined typical emotion‐related components for complex images presented either as unfiltered, LSF, or high spatial frequency (HSF, as an additional control) filtered, unpleasant, and neutral images. We found a significant main effect of emotional valence in the early posterior negativity. Late positive potential differences were only found for unfiltered and HSF images. Results suggest that, while LSF content is sufficient to allow for content and emotional cue extraction when images were presented alone, LSF content is not salient enough to serve as emotional distractor that withdraws attentional resources from a foreground task in early visual cortex.
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DOI：
10.5909/jbe.2007.12.2.177
发表时间：
2007-03
期刊：
--
影响因子：
--
作者：
J. Choe;T. Jeong;Hyunsoo Choi;Eunjae Lee;Sangwook Lee;Chulhee Lee
通讯作者：
J. Choe;T. Jeong;Hyunsoo Choi;Eunjae Lee;Sangwook Lee;Chulhee Lee
自然的选择性关注：定向和情感。
影响因子：
3.7
作者：
Bradley MM
通讯作者：
Bradley MM
影响因子：
5.7
作者：
Bekhtereva, Valeria;Craddock, Matt;Mueller, Matthias M.
通讯作者：
Mueller, Matthias M.
影响因子：
3.7
作者：
Bradley, Margaret M.;Hamby, Steven;Lang, Peter J.
通讯作者：
Lang, Peter J.
影响因子：
1.8
作者：
LEGGE, GE
通讯作者：
LEGGE, GE