Department of Precision Engineering, The University of Tokyo, Tokyo 113-8656, Japan
Department of Psychology, The University of Tokyo, Tokyo 113-0033, Japan.
eNeuro. 2020 Oct 28;7(5). doi: 10.1523/ENEURO.0258-20.2020. Print 2020 Sep/Oct.
The self is a distinct entity from the rest of the world, and actions and sensory feedback are our channels of interaction with the external world. This study examined how the sense of control influences people's perception of sensorimotor input under the framework of categorical perception. Twenty human participants (18 males, two females) took part in both experiments. Experiment 1 showed that the sensitivity (d') of detecting a 20% change in control from no change was higher when the changes occurred at the control-category boundary than within each category. Experiment 2 showed that the control categories greatly affected early attention allocation, even when the judgment of control was unnecessary to the task. Taken together, these results showed that our perceptual and cognitive systems are highly sensitive to small changes in control that build up to a determinant change in the control category within a relatively narrow boundary zone between categories, compared with a continuous, gradual physical change in control.
自我是与世界其他部分截然不同的实体，而行动和感官反馈是我们与外部世界互动的渠道。本研究在范畴知觉的框架下，考察了控制感如何影响人们对感觉运动输入的感知。20 名人类参与者（18 名男性，2 名女性）参与了这两个实验。实验 1 表明，当变化发生在控制类别边界而不是每个类别内时，检测控制从无变化到 20%变化的敏感性（d'）更高。实验 2 表明，控制类别极大地影响了早期注意力分配，即使在任务中不需要控制判断也是如此。总的来说，这些结果表明，与连续的、渐进的物理控制变化相比，我们的感知和认知系统对控制的小变化非常敏感，这些小变化会在类别之间相对较窄的边界区域内累积到控制类别的决定性变化，而不是控制的连续、渐进变化。
