Lopresti-Goodman Stacy M, Richardson Michael J, Baron Reuben M, Carello Claudia, Marsh Kerry L
Center for the Ecological Study of Perception and Action (CESPA) and the Dept. of Psychology, University of Connecticut, Storrs, CT 06269, USA.
Motor Control. 2009 Jan;13(1):69-83. doi: 10.1123/mcj.13.1.69.
The actualization of a simple affordance task-grasping and moving wooden planks of different sizes using either one or two hands-was assessed in the context of task-relevant (plank sequence, plank presentation speed) and task-irrelevant (cognitive load) manipulations. In Experiment 1, fast (3 s/plank) and self-paced ( approximately 5 s/plank) presentation speeds revealed hysteresis; the transition point for ascending series was greater than the transition point for descending series. Hysteresis was eliminated in the slowest presentation speed (10 s/plank). In Experiment 2, hysteresis was exaggerated by a cognitive load (counting backward by seven) for both fast and slow presentation speeds. These results suggest that behavioral responses to the attractor dynamics of perceived affordances are processes that require minimal cognitive resources.
在与任务相关的（木板顺序、木板呈现速度）和与任务无关的（认知负荷）操作背景下，评估了一项简单的可供性任务的实现情况，即使用一只手或两只手抓取并移动不同尺寸的木板。在实验1中，快速（每秒3块木板）和自定节奏（约每秒5块木板）的呈现速度显示出滞后现象；上升序列的转变点大于下降序列的转变点。在最慢的呈现速度（每秒10块木板）下，滞后现象消失了。在实验2中，无论是快速还是慢速呈现速度，认知负荷（倒着数7）都会加剧滞后现象。这些结果表明，对感知到的可供性的吸引子动力学的行为反应是需要最少认知资源的过程。
