Rapid visual stimulation can increase synaptic efficacy by repeated synaptic activation. This long‐term potentiation‐like (LTP‐like) effect can induce increased excitability in the human visual cortex. To examine the effect of rapid visual stimulation on perception, we tested the hypothesis that rapid monocular visual stimulation would increase the dominance of the stimulated eye in a binocular rivalry task. Participants (n = 25) viewed orthogonal 0.5 cpd gratings presented in a dichoptic anaglyph to induce binocular rivalry. Rivalry dynamics (alternation rate, dominance, and piecemeal durations) were recorded before and after 2 min of rapid monocular stimulation (9 Hz flicker of one grating) or a binocular control condition (9 Hz alternation of the orthogonal gratings viewed binocularly). Rapid monocular stimulation did not affect alternation rates or piecemeal percept duration. Unexpectedly, the rivalry dominance of the stimulated eye was significantly reduced. A further experiment revealed that this effect could not be explained by monocular adaptation. Together, the results suggest that rapid monocular stimulation boosts dominance in the non‐stimulated eye, possibly by activating homeostatic interocular gain control mechanisms.

中文翻译：

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快速单眼视觉刺激调节双眼竞争

快速的视觉刺激可以通过反复的突触激活来提高突触效力。这种长期的增强电位（LTP）效应可以诱导人类视觉皮层的兴奋性增加。为了检查快速视觉刺激对知觉的影响，我们测试了以下假设：快速单眼视觉刺激会增加双眼竞争任务中被刺激眼睛的优势。参加人数 = 25）观察到在两栖浮雕中出现的正交0.5 cpd光栅以引起双目竞争。在快速单眼刺激（一个光栅的9 Hz闪烁）或双目控制条件（双目观察的正交光栅的9 Hz交替）2分钟之前和之后，记录竞争动态（交替率，优势和零碎的持续时间）。快速单眼刺激不影响交替率或零碎感知持续时间。出乎意料的是，受激眼睛的竞争优势显着降低。进一步的实验表明，单眼适应不能解释这种作用。总之，这些结果表明，快速单眼刺激可能会通过激活稳态眼内增益控制机制来增强非刺激眼的优势。