著者

勝 将也 中島 綾乃 菊池 華世 中島 亮一 大澤 正彦

出版者

日本認知科学会

雑誌

認知科学 (ISSN:13417924)

巻号頁・発行日

vol.30, no.3, pp.314-326, 2023-09-01 (Released:2023-09-15)

参考文献数

36

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It is important to maintain the communication with an agent (e.g., a robot), when people enjoy the human-agent communication. Recent studies reported that using shiritori, a game where players say a word starting with the last letter of the previous word, may be effective to verbally communicate with an agent speaking semi-natural language (i.e., words expressed by the combination of sounds of “do” and “ra”). This study examined what factors influence the communication with the agent using such language. Experiment 1 investigated the effect of the timing of providing information on the guessing of the word expressed by semi-natural language. Participants watched a video clip of the agent using such language, guessed the meaning of the word it spoke, and reported their confidence in their guess. They were provided information about the initial letter and the number of characters before or after watching the video clips. The results suggest that the timing of the information is not important to guess the semi-natural language word. Experiment 2 investigated the effect of shiritori with the agent on the guessing of semi-natural language. Participants were assigned to one of three groups: assuming shiritori, informed of the initial letter, and non-informed groups. The confidence rating was higher in the shiritori group than in the other groups. Therefore, the information provided by shiritori should be important to guess the semi-natural language words. We also discussed the possibility that the typical word pairs in shiritori can influence the guessing of such language.

著者

阿江 数通 小池 関也 川村 卓 中島 亮一

出版者

一般社団法人 日本体育学会

雑誌

体育学研究 (ISSN:04846710)

巻号頁・発行日

vol.64, no.1, pp.135-149, 2019-06-17 (Released:2019-06-25)

参考文献数

40

被引用文献数

2

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The purpose of this study was to investigate the kinematic characteristics of the lower limbs in relation to the rotation movement of the body based on the moment of the ground reaction force. Twenty-two male collegiate baseball players (age: 19.8 ± 1.3 yr, height 1.75 ± 0.04 m, body mass 73.9 ± 6.2 kg, athletic career:12.1 ± 2.1 yr) participated. They performed baseball tee-batting, set at middle ball height for the strike zone. Threedimensional coordinate data were acquired with a motion capture system (Vicon-MX), and ground reaction force data for both legs were acquired with 3 force platforms. High and low groups (HG and LG) were categorized by the mean peak moment around the vertical axis of the body’s center of gravity caused by the ground reaction force. The period analyzed was that from stride-side foot contact with ground until ball impact, and 2 phases were defined as follows: backward phase, stride-side foot contact with ground until the peak moment of the ground reaction force; forward phase, the end of the backward phase until ball impact. Statistical analysis was conducted using an independent t-test between HG and LG (p <0.05), and the effect size was calculated (small: d = 0.2; middle: d = 0.5; high: d = 0.8). In the backward phase, the flexion angle of both hips was greater in the HG than in the LG at event1 (pivot-side: d = 0.74; stride-side: d =0.97). The abduction angle of the pivot-side hip was significantly greater in the HG than in the LG (stride-side foot contact with ground: d = 0.94; peak moment of the ground reaction force: d = 1.44). In the forward phase, the external rotation angle of the pivot-side hip was significantly greater in the HG than in the LG (d = 1.02), which contributed to the inter-group difference in the internal rotation angle at the instant of stride-side foot contact. These results indicate that the motions of both hip joints acted to rotate the whole body around the vertical axis effectively. The knowledge obtained from this study should provide useful suggestions and insights into coaching for movements of the lower limbs in order to improve batting performance in relation to the rotational movement of the body.

著者

中島 亮一 横澤 一彦

出版者

日本心理学会

雑誌

心理学研究 (ISSN:00215236)

巻号頁・発行日

vol.89, no.5, pp.527-532, 2018-12

著者

中島 亮一 横澤 一彦

出版者

公益社団法人 日本心理学会

雑誌

心理学研究 (ISSN:00215236)

巻号頁・発行日

pp.89.17344, (Released:2018-09-20)

参考文献数

24

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To investigate the effect of continuous focused attention on change detection, Nakashima & Yokosawa (2018) conducted a single object change detection task, manipulating blank durations and locations of study and test images (same/different). They suggested that attention can focus on a local area during a brief blank period, and that continuous focused attention facilitates only the detection of occurring change. We examined this suggestion further. To examine the possibility that observers strategically move attention during a long blank period rather than attention being spontaneously disengaged from a focused area, the image location condition was blocked. Additionally, the numbers of change trials and no-change trials were equated, in contrast to the larger number of change trials in the previous research. Even with these changes in method, our experiment showed that the change detection performance in the same location condition was better in the short blank than the long blank condition only in change trials. Thus, we suggested that attention certainly focuses on an area only briefly and facilitates change detection.

著者

中島 亮一

出版者

日本認知心理学会

雑誌

日本認知心理学会発表論文集 日本認知心理学会第15回大会

巻号頁・発行日

pp.39, 2017 (Released:2017-10-16)

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ある位置を注視していたとしても、頭部方向正面で見るか、横目で見るかによって、視覚処理が変容する。具体的には、頭部正面方向における視覚処理が促進される。本研究では、横目で注視点を見ている時の、視覚的注意の空間的な広がりについて検討した。実験では、注視点位置に呈示されるTの文字の向き判断と、周辺視野に呈示されるドットの検出を同時に行う、二重課題の有効視野課題を行った。また、注視点に対する頭部(と身体)方向を、正面・左右と操作した。注視点の左または右にドットが出てきた場合の検出率の差分を左バイアスという指標とし、頭部方向条件間で比較した。その結果、左バイアスは、頭部方向が左、正面、右の順に大きかった。同様に下バイアスも比較したが、頭部方向条件間に違いは見られなかった。よって、横目観察時には、水平方向において、有効視野が頭部正面側に偏って広がっていることが示唆される。

著者

中島 亮一 横澤 一彦

出版者

日本心理学会

雑誌

心理学研究 (ISSN:00215236)

巻号頁・発行日

vol.85, no.6, pp.603-608, 2015-02