ダウンロード数: 51
このアイテムのファイル:
ファイル | 記述 | サイズ | フォーマット | |
---|---|---|---|---|
journal.pone.0291715.pdf | 1.28 MB | Adobe PDF | 見る/開く |
タイトル: | Temporal properties of the speed-accuracy trade-off for arm-pointing movements in various directions around the body |
著者: | Okuuchi, Soma Tani, Keisuke Kushiro, Keisuke |
著者名の別形: | 奥内, 蒼馬 谷, 恵介 久代, 恵介 |
キーワード: | Anisotropy Body limbs Hands Reaction time Analysis of variance Signal processing Skeletal joints Target detection |
発行日: | Sep-2023 |
出版者: | Public Library of Science (PLoS) |
誌名: | PLOS ONE |
巻: | 18 |
号: | 9 |
論文番号: | e0291715 |
抄録: | Human body movements are based on the intrinsic trade-off between speed and accuracy. Fitts’s law (1954) shows that the time required for movement is represented by a simple logarithmic equation and is applicable to a variety of movements. However, few studies have determined the role of the direction in modulating the performance of upper limb movements and the effects of the interactions between direction and distance and between direction and target size. This study examined the variations in temporal properties of the speed-accuracy trade-off in arm-pointing movements that directly manipulate objects according to the direction, distance, and target size. Participants performed pointing movements to the targets with 3 different sizes presented at 15 locations (5 directions and 3 distances) on a horizontal plane. Movement time (MT) for each trial in each condition was obtained. Subsequently, Mackenzie’s model (1992), MT = a + b log₂(D/W +1), where D and W represent the distance and width of the target, respectively, was fitted. The slope factor b, a fitted parameter in the equation, was calculated and evaluated according to the changes in the direction, distance, and target size. The results showed that MTs exhibited anisotropy in the hemifield, being the smallest in the right-forward direction. Additionally, the slope factor b, as a function of distance, was smaller in the rightward direction than in the forward and left-forward directions. These results suggest that the degree of difficulty of upper limb movements expands heterogeneously in various directions around the body. |
著作権等: | © 2023 Okuuchi et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
URI: | http://hdl.handle.net/2433/286128 |
DOI(出版社版): | 10.1371/journal.pone.0291715 |
PubMed ID: | 37733687 |
出現コレクション: | 学術雑誌掲載論文等 |
このアイテムは次のライセンスが設定されています: クリエイティブ・コモンズ・ライセンス