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Invisible Adaptation: The Effect of Awareness on the Strength of the Motion Aftereffect

机译：无形的适应：意识对运动的力量的影响

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The ability to process information despite the lack of perceptual awareness is one of the most fascinating aspects of the visual system. Such unconscious processing is often investigated using adaptation, where any presence of the former can be traced by its footprint on aftereffects following the latter. We have investigated the mechanisms of the motion aftereffect (MAE) using random dot displays of varying motion coherence as well as crowding to modulate both the physical as well as the perceptual strength of the adaptation stimulus. Perceptual strength was quantitatively measured as the performance in a forced-choice direction-discrimination task. A motion-nulling technique was used to quantitatively measure the strength of the MAE. We show that the strength of the dynamic MAE is independently influenced by both the physical stimulus strength as well as the subjective perceptual strength, with the effect of the former being more prominent than that of the latter. We further show that the MAE still persists under conditions of subthreshold perception. Our results suggest that perceptual awareness can influence the strength of visual processing, but the latter is not fully dependent on the former and can still take place at its partial or even total absence.
机译：尽管缺乏感知感知意识，但处理信息的能力是视觉系统最令人迷人的方面之一。这种无意识处理通常使用适应来研究，其中可以通过其在后者之后的后缺陷的占地面积来追踪前者的任何存在。我们研究了使用不同运动相干性的随机点显示的运动后缺失（MAE）的机制，以及挤拥有适应刺激的物理和感知强度。感知强度被定量地测量作为强制选择方向歧视任务中的性能。运动型技术用于定量测量MAE的强度。我们表明动态MAE的强度受到物理刺激力量和主观感知强度的独立影响，前者与后者更突出的影响。我们进一步表明，MAE仍然持续存在于划分的感知条件下。我们的研究结果表明，感知感知感知会影响视觉处理的实力，但后者并不完全依赖前者，并且仍然可以在部分甚至完全没有缺席。

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