Richardson Michael J, Marsh Kerry L, Baron Reuben M
Department of Psychology, Center for the Ecological Study of Perception and Action, University of Connecticut, CT, USA.
J Exp Psychol Hum Percept Perform. 2007 Aug;33(4):845-59. doi: 10.1037/0096-1523.33.4.845.
The current study investigated the perception of intrapersonal, interpersonal, and tool-based grasping possibilities. In Experiment 1, participants judged whether they would grasp planks of wood-presented in ascending, descending, and random orders of length-using one hand (1H), two hands (2H), or with a tool that extended their reach (TH). In Experiment 2, participants physically grasped the planks using 1H, 2H, or TH. In Experiments 3 and 4, the choice of TH was replaced with a choice of grasping the planks with another person (2P). The results showed that presentation order influenced the participants' behavior differently in the judgment and action experiments. The same behavioral patterns, however, were observed when participants switched between 1H and 2H, 2H and TH, and 2H and 2P grasping. The point at which participants judged they would switch between the different modes of grasping, as well as the point at which participants physically switched between the grasping modes, occurred at similar action-scaled ratios. The equivalence of perceiving intrapersonal and interpersonal affordances is discussed.
当前的研究调查了对个人内部、人际间以及基于工具的抓握可能性的感知。在实验1中，参与者判断他们是否会用一只手（1H）、两只手（2H）或使用延长其够取范围的工具（TH）来抓握以长度递增、递减和随机顺序呈现的木板。在实验2中，参与者用1H、2H或TH实际抓握木板。在实验3和4中，将选择TH替换为选择与另一个人（2P）一起抓握木板。结果表明，呈现顺序在判断和行动实验中对参与者行为的影响不同。然而，当参与者在1H和2H、2H和TH以及2H和2P抓握之间切换时，观察到了相同的行为模式。参与者判断他们会在不同抓握模式之间切换的点，以及参与者在抓握模式之间实际切换的点，出现在相似的动作比例尺度上。本文讨论了个人内部和人际间可供性感知的等效性。
