School of Psychology, University of Nottingham, Nottingham, UK.
Department of Psychology and Logopedics, University of Helsinki, Helsinki, Finland.
Psychol Res. 2022 Mar;86(2):364-374. doi: 10.1007/s00426-021-01503-8. Epub 2021 Mar 23.
Space, time and number are key dimensions that underlie how we perceive, identify and act within the environment. They are interconnected in our behaviour and brain. In this study, we examined interdependencies between these dimensions. To this end, left- and right-handed participants performed an object collision task that required space-time processing and arithmetic tests that involved number processing. Handedness of the participants influenced collision detection with left-handers being more accurate than right-handers, which is in line with the premise that hand preference guides individual differences as a result of sensorimotor experiences and distinct interhemispheric integration patterns. The data further showed that successful collision detection was a predictor for arithmetic achievement, at least in right-handers. These findings suggest that handedness plays a mediating role in binding information processing across domains, likely due to selective connectivity properties within the sensorimotor system that is guided by hemispheric lateralisation patterns.
空间、时间和数量是我们在环境中感知、识别和行动的基础关键维度。它们在我们的行为和大脑中相互关联。在这项研究中，我们研究了这些维度之间的相互依存关系。为此，左撇子和右撇子参与者进行了一项物体碰撞任务，该任务需要时空处理，以及涉及数字处理的算术测试。参与者的手性影响碰撞检测，左撇子比右撇子更准确，这与手偏好通过感觉运动经验和独特的大脑半球间整合模式引导个体差异的前提一致。数据还表明，成功的碰撞检测是算术成绩的预测因素，至少在右撇子中是这样。这些发现表明，手性在跨领域的信息处理中起着中介作用，这可能是由于感觉运动系统内的选择性连接特性，这些特性是由大脑半球侧化模式指导的。
