Department of Psychology, Tel Aviv University, Tel Aviv, Israel.
PLoS One. 2011;6(10):e24347. doi: 10.1371/journal.pone.0024347. Epub 2011 Oct 5.
Agency plays an important role in self-recognition from motion. Here, we investigated whether our own movements benefit from preferential processing even when the task is unrelated to self-recognition, and does not involve agency judgments. Participants searched for a moving target defined by its known shape among moving distractors, while continuously moving the computer mouse with one hand. They thereby controlled the motion of one item, which was randomly either the target or any of the distractors, while the other items followed pre-recorded motion pathways. Performance was more accurate and less prone to degradation as set size increased when the target was the self-controlled item. An additional experiment confirmed that participant-controlled motion was not physically more salient than motion recorded offline. We found no evidence that self-controlled items captured attention. Taken together, these results suggest that visual events are perceived more accurately when they are the consequences of our actions, even when self-motion is task irrelevant.
在自我运动识别中，主体扮演着重要的角色。在这里，我们研究了当任务与自我识别无关且不涉及主体判断时，我们自己的运动是否会受到优先处理。参与者用一只手持续移动电脑鼠标，在移动的干扰项中搜索由已知形状定义的移动目标。他们控制一个物体的运动，这个物体随机是目标或任何干扰项，而其他物体则遵循预先记录的运动路径。当目标是自我控制的物体时，随着目标数量的增加，参与者的表现会更加准确，并且不易受到干扰。一项额外的实验证实，参与者控制的运动在物理上并不比离线记录的运动更显著。我们没有发现自我控制的物体吸引注意力的证据。总的来说，这些结果表明，即使自我运动与任务无关，当视觉事件是我们行为的结果时，它们会被更准确地感知。
