Department of Psychology, Arizona State University, Tempe, AZ, USA.
Sci Adv. 2019 Apr 24;5(4):eaav5698. doi: 10.1126/sciadv.aav5698. eCollection 2019 Apr.
Temporal order judgments can require integration of self-generated action events and external sensory information. We examined whether conscious experience is biased to perceive one's own action events to occur before simultaneous external events, such as deciding whether you or your opponent last touched a basketball heading out of bounds. Participants made temporal order judgments comparing their own touch to another participant's touch, a mechanical touch, or an auditory click. In all three manipulations, we find a robust bias to perceive self-generated action events to occur about 50 ms before external sensory events. We denote this bias to perceive self-actions earlier as the "egocentric temporal order" bias. Thus, if two players hit a ball nearly simultaneously, then both will likely have different subjective experiences of who touched last, leading to arguments.
时间顺序判断可能需要整合自我生成的动作事件和外部感官信息。我们研究了意识体验是否存在偏差，使得人们倾向于认为自己的动作事件先于同时发生的外部事件发生，例如判断是自己还是对手最后触碰到了篮球，使其出界。参与者通过比较自己的触摸与另一个参与者的触摸、机械触摸或听觉点击来进行时间顺序判断。在所有三种操作中，我们都发现了一种强烈的偏差，即认为自我产生的动作事件大约在外部感官事件之前 50 毫秒发生。我们将这种更早感知自我动作的偏差称为“自我中心时间顺序”偏差。因此，如果两个球员几乎同时击球，那么双方很可能会对谁最后触球有不同的主观感受，从而引发争论。
