The object-context associations and the valence are two important stimulus attributes that influence visual perception. The current study investigates the neural sources associated with schema congruent and incongruent object-context associations within positive, negative, and neutral valence during an intermittent binocular rivalry task with simultaneous high-density EEG recording. Cortical sources were calculated using the sLORETA algorithm in 150 ms after stimulus onset (Stim + 150) and 400 ms before response (Resp-400) time windows. No significant difference in source activity was found between congruent and incongruent associations in any of the valence categories in the Stim + 150 ms window indicating that immediately after stimulus presentation the basic visual processing remains the same for both. In the Resp-400 ms window, different frontal regions showed higher activity for incongruent associations with different valence such as the superior frontal gyrus showed significantly higher activations for negative while the middle and medial frontal gyrus showed higher activations for neutral and finally, the inferior frontal gyrus showed higher activations for positive valence. Besides replicating the previous knowledge of frontal activations in response to context congruity, the current study provides further evidence for the sensitivity of the frontal lobe to the valence associated with the incongruent stimuli.

对象-上下文关联和化合价是影响视觉感知的两个重要的刺激属性。当前的研究调查了在间歇性双眼对战任务中同时进行高密度脑电图记录的正，负和中性价态下与构想一致和对象不一致的对象-上下文关联相关的神经源。皮质来源 在刺激发作后150毫秒（Stim + 150）和响应时间之前的400毫秒（Resp-400）时间窗口中，使用sLORETA算法计算结果。在Stim + 150 ms窗口的任何价类中，在同等和不对等关联中，在源活动之间均未发现显着差异，这表明刺激演示后，基本视觉处理对于两者均保持不变。在Resp-400 ms窗口中，不同的额叶区域对价数不一致的关联显示较高的活性，例如上额叶回对负值的激活明显更高，而中额额叶和中额回对中性和下额叶的激活更高。回旋显示更高的激活为正价。