著者

Masashi KOMORI Chika NAGAOKA

出版者

Japan Society of Kansei Engineering

雑誌

Kansei Engineering International Journal (ISSN:21857865)

巻号頁・発行日

vol.11, no.4, pp.179-182, 2012 (Released:2012-12-13)

参考文献数

10

被引用文献数

1

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In face-to-face communication, the listener's body movements are often observed to occur nearly simultaneously with changes in the speaker's voice pattern. This synchronization between speaker and listener is called entrainment. The present study investigated the relationship between classroom seating positions and instructor-student entrainment. Four university instructors individually gave 60-minute lectures to classes of 36-64 students in classrooms. The body movements of the students were captured using a video camera, and the voices of instructors were recorded via a microphone. For each pixel, the covariance between the sound level changes of a instructor's voice and the power of the brightness fluctuations of the pixel was calculated as an index of the entrainment level of each location in the classroom. The results suggested that students sitting in the middle row of the middle column in the classroom showed higher entrainment levels. Moreover, changes of entrainment level were found to reflect changes in student's interest in the lecture.

著者

Masashi KOMORI Hiroko KAMIDE Satoru KAWAMURA Chika NAGAOKA

出版者

The Institute of Electronics, Information and Communication Engineers

雑誌

IEICE TRANSACTIONS on Information and Systems (ISSN:09168532)

巻号頁・発行日

vol.E96-D, no.3, pp.507-513, 2013-03-01

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This study investigated the relationship between social skills and facial asymmetry in facial expressions. Three-dimensional facial landmark data of facial expressions (neutral, happy, and angry) were obtained from Japanese participants (n = 62). Following a facial expression task, each participant completed KiSS-18 (Kikuchi's Scale of Social Skills; Kikuchi, 2007). Using a generalized Procrustes analysis, faces and their mirror-reversed versions were represented as points on a hyperplane. The asymmetry of each individual face was defined as Euclidian distance between the face and its mirror reversed face on this plane. Subtraction of the asymmetry level of a neutral face of each individual from the asymmetry level of a target emotion face was defined as the index of “expression asymmetry” given by a particular emotion. Correlation coefficients of KiSS-18 scores and expression asymmetry scores were computed for both happy and angry expressions. Significant negative correlations between KiSS-18 scores and expression asymmetries were found for both expressions. Results indicate that the symmetry in facial expressions increases with higher level of social skills.

著者

Ryota MIYAWAKI Masashi KOMORI Kumiko KOKUBO Chika NAGAOKA Takumi YOKOYAMA

出版者

日本感性工学会

雑誌

International Journal of Affective Engineering (ISSN:21875413)

巻号頁・発行日

vol.16, no.2, pp.75-80, 2017 (Released:2017-04-28)

参考文献数

16

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Quantitative analytical framework for investigating the relationship between the design of 3D products and subjective impressions regarding shapes was developed by using a combination of spherical harmonics (SPHARM) and multivariate analysis. SPHARM is a parametric surface description that uses spherical harmonics as its basic function. The shape of liquid soap bottles was focused as a typical example of 3D product design. We converted 3D surface data on shape of 22 liquid soap bottles into multivariate coefficients using SPHARM, in order to extract their major morphological features. Then, we performed a principal component analysis of these coefficients. The extracted morphological features were related to the aspect ratio in the frontal plane, thickness and roundness. Subsequently, participants rated their subjective impressions of bottle shapes on a semantic differential scale. We examined relationships between major morphological features of bottles and their subjective impressions. Results indicated that this methodology is effective for appreciating the positioning of a product's shape design, as well as for systematically understanding the correspondence between shapes and subjective impressions of products.

著者

Chika Nagaoka Yukiko Uchida

出版者

(公社)日本産業衛生学会

雑誌

Journal of Occupational Health (ISSN:13419145)

巻号頁・発行日

pp.13-0065-FS, (Released:2014-04-17)

被引用文献数

3

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Objective: In order to safely manage nuclear power plants, their workforce should be mentally healthy. This study clarifies the coping strategies of radiation control personnel and nondestructive inspectors engaged in the periodic inspection of nuclear power plants, the effect of the coping strategies on their mental health, as well as any effect based on whether or not they had worked after the nuclear disaster caused by the Great East Japan Earthquake and tsunami in March 2011. Methods: A questionnaire survey was administered to 133 technicians attending a certification course, and among them, our subjects of analysis were 104 people with work experience in radiation control and/or nondestructive inspection. Results: The results indicated that even among workers of the same company who were assigned to similar duties in the periodic inspections of nuclear power plants, the group that had worked at a nuclear plant after the disaster had a tendency to use coping strategies, such as giving up and avoidance-like thinking, which was dissimilar to the group that had not worked at a nuclear plant after the disaster. Further, the former group had higher levels of distress than those who tended to use other coping strategies. In addition, the results suggested that the plan-drafting strategy adopted by the group that had not worked after the disaster did not result in stress reduction. Discussion: Based on these results, we propose a stress management program specifically for radiation workers.

著者

Chika NAGAOKA Masashi KOMORI

出版者

一般社団法人 電子情報通信学会

雑誌

IEICE Transactions on Information and Systems (ISSN:09168532)

巻号頁・発行日

vol.E91.D, no.6, pp.1634-1640, 2008-06-01 (Released:2010-03-01)

参考文献数

17

被引用文献数

2 41

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Body movement synchrony (i. e. rhythmic synchronization between the body movements of interacting partners) has been described by subjective impressions of skilled counselors and has been considered to reflect the depth of the client-counselor relationship. This study analyzed temporal changes in body movement synchrony through a video analysis of client-counselor dialogues in counseling sessions. Four 50-minute psychotherapeutic counseling sessions were analyzed, including two negatively evaluated sessions (low evaluation groups) and two positively evaluated sessions (high evaluation groups). In addition, two 50-minute ordinary advice sessions between two high school teachers and the clients in the high rating group were analyzed. All sessions represent role-playing. The intensity of the participants' body movement was measured using a video-based system. Temporal change of body movement synchrony was analyzed using moving correlations of the intensity between the two time series. The results revealed (1) A consistent temporal pattern among the four counseling cases, though the moving correlation coefficients were higher for the high evaluation group than the low evaluation group and (2) Different temporal patterns for the counseling and advice sessions even when the clients were the same. These results were discussed from the perspective of the quality of client-counselor relationship.