Abstract
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, d') 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 near space and pull actions to far space, 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).
Published Version
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