Department of Psychology, Claremont Graduate University.
J Exp Psychol Hum Percept Perform. 2020 Apr;46(4):388-404. doi: 10.1037/xhp0000722.
Researchers propose 2 opposing views regarding visuospatial attentional distributions of tool space. Tool-use in far space either (a) remaps peripersonal space leading to distributed attention along the tool, or (b) shifts attention to the tool's functional end. However, most studies employ only one type of functional tool action to support their view. This study assessed whether attentional distributions are explained by different tool action types performed in space relative to the body. In Experiment 1, participants used a curved tool to push objects in far space or pull objects from far-to-near space, n = 96. Visual attention (mean correct RT, ') was measured at three equidistant target locations (tool handle, middle shaft, functional end) in far space, before and after tool actions using a 50/50, go/no-go target discrimination task. In Experiment 2, push actions were confined to and pull actions to , n = 96. Regardless of pushing or pulling, tool actions in far space improved attention only at the tool's end. Pulling objects into near space distributed attentional facilitation along the tool's length. Thus, tool-use peripersonal space remapping and attentional shifts may be dependent on specific functional tool actions in near and far space. (PsycInfo Database Record (c) 2020 APA, all rights reserved).
研究人员对于工具空间的视空间注意力分布提出了两种相反的观点。在远距空间中使用工具，要么 (a) 重新映射了近距空间，导致工具沿线的注意力分布，要么 (b) 将注意力转移到工具的功能端。然而，大多数研究仅使用一种类型的功能工具动作来支持他们的观点。本研究评估了在相对于身体的空间中执行不同类型的工具动作是否可以解释注意力的分布。在实验 1 中，96 名参与者使用弯曲的工具将物体推到远距空间或从远距空间拉到近距空间。在使用 50/50、go/no-go 目标辨别任务之前和之后，在远距空间的三个等距目标位置（工具手柄、中间轴、功能端）测量视觉注意力（平均正确反应时间，'）。在实验 2 中，推动作限于 ，拉动作限于 。无论推或拉，远距空间中的工具动作仅在工具末端改善了注意力。将物体拉入近距空间会沿工具长度分配注意力促进作用。因此，工具使用近距和远距空间的特定功能工具动作可能依赖于近距和远距空间的特定功能工具动作。（PsycInfo 数据库记录（c）2020 APA，保留所有权利）。
