Okanoya Emotional Information Project, Exploratory Research for Advanced Technology, Japan Science and Technology Agency Wako-shi, Japan ; Emotional Information Joint Research Laboratory, RIKEN Brain Science Institute Wako-shi, Japan.
Front Syst Neurosci. 2013 May 24;7:19. doi: 10.3389/fnsys.2013.00019. eCollection 2013.
Oculomotor events such as blinks and saccades transiently interrupt the visual input and, even though this mostly goes undetected, these brief interruptions could still influence the percept. In particular, both blinking and saccades facilitate switching in ambiguous figures such as the Necker cube. To investigate the neural state antecedent to these oculomotor events during the perception of an ambiguous figure, we measured the human scalp electroencephalogram (EEG). When blinking led to perceptual switching, antecedent occipital alpha band activity exhibited a transient increase in amplitude. When a saccade led to switching, a series of transient increases and decreases in amplitude was observed in the antecedent occipital alpha band activity. Our results suggest that the state of occipital alpha band activity predicts the impact of oculomotor events on the percept.
眼球运动事件，如眨眼和扫视，会短暂地中断视觉输入，尽管这种情况大多未被察觉，但这些短暂的中断仍可能影响感知。特别是眨眼和扫视会促进在像内克尔立方体这样的模糊图形中的切换。为了研究在感知模糊图形时这些眼球运动事件之前的神经状态，我们测量了人类头皮脑电图（EEG）。当眨眼导致感知切换时，先前的枕部 alpha 波段活动的振幅表现出短暂增加。当扫视导致切换时，先前的枕部 alpha 波段活动的振幅会观察到一系列的短暂增加和减少。我们的结果表明，枕部 alpha 波段活动的状态可以预测眼球运动事件对感知的影响。
