Department of Cognitive, Linguistic & Psychological Sciences, Brown University.
Carney Institute for Brain Science, Brown University.
Psychol Sci. 2019 Oct;30(10):1434-1448. doi: 10.1177/0956797619859361. Epub 2019 Sep 10.
Perception and action interact in nearly every moment of daily life. Previous studies have demonstrated not only that perceptual input shapes action but also that various factors associated with action-including individual abilities and biomechanical costs-influence perceptual decisions. However, it is unknown how action fluency affects the sensitivity of early-stage visual perception, such as orientation. To address this question, we used a dual-task paradigm: Participants prepared an action (e.g., grasping), while concurrently performing an orientation-change-detection task. We demonstrated that as actions became more fluent (e.g., as grasping errors decreased), perceptual-discrimination performance also improved. Importantly, we found that grasping training prior to discrimination enhanced subsequent perceptual sensitivity, supporting the notion of a reciprocal relation between perception and action.
在日常生活的几乎每一刻，感知和行动都相互作用。先前的研究不仅表明，感知输入塑造了行动，而且与行动相关的各种因素——包括个人能力和生物力学成本——影响了感知决策。然而，目前尚不清楚行动流畅度如何影响早期视觉感知的敏感性，例如方向感。为了解决这个问题，我们使用了一种双重任务范式：参与者在准备动作（例如抓握）的同时，同时执行方向变化检测任务。我们证明，随着动作变得更加流畅（例如，抓握错误减少），感知辨别性能也得到了提高。重要的是，我们发现，在进行辨别之前进行抓握训练可以增强后续的感知敏感性，这支持了感知和行动之间存在相互关系的观点。
