Toshimasa Yamanaka

Toshimasa Yamanaka
University of Tsukuba · School of Art and Design

PhD (Kansei Science)

About

160
Publications
24,092
Reads
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475
Citations
Citations since 2017
48 Research Items
236 Citations
201720182019202020212022202301020304050
201720182019202020212022202301020304050
201720182019202020212022202301020304050
201720182019202020212022202301020304050
Additional affiliations
April 2016 - present
Japanese Society for the Science of Design
Position
  • Audit
April 2012 - March 2016
Japanese Society for the Science of Design
Position
  • CEO
Description
  • Japanese Society for the Science of Design was established in 1953. Organized International Congress of IASDR (International Association of Societies of Design Research), 2013 at Shibaura Institute of Tech.
April 2012 - present
Japan Society of Kansei Engineering
Position
  • Counselor
Description
  • Vice President for 2011-2012
Education
April 2003 - March 2005
University of Tsukuba
Field of study
  • Kansei Science
April 1980 - March 1982
Chiba University
Field of study
  • Industrial design

Publications

Publications (160)
Article
Full-text available
Gender ambiguous voice agents have been considered as a way to reduce gender bias and harmful stereotyping on Voice User Interfaces (VUI). This study explores a method for designing gender ambiguous voice agents for VUIs and investigates its effects on two usability factors: Ease of Understanding and Pleasantness. To conduct this investigation, pit...
Chapter
Applying speech-based sounds in User Interfaces presents several advantages compared to other stimuli. Regarding the auditory displays, most part of previous research analyses Pleasure, Commandingness and Urgency in a single situation with high level of designed urgency. Considering this gap, the present study aimed to analyse the aforementioned fa...
Conference Paper
With the widespread availability of Voice Assistants in smart devices, the usage of Voice User Interfaces has highly increased in the recent years. Although the anthropomorphized Voice Assistants present in these systems can aid users in many tasks, it also activates harmful gender bias and stereotypes. Since the usage of Gender Ambiguous voice age...
Chapter
In existing modular toys, information is transmitted by invisible electrical signals, making it difficult to understand the information flow between modules. This study developed a modular toy, “Hikari-Tsumiki,” that visualizes the information flow between modules by light emission. For the development of the system, we set design guidelines based...
Article
Full-text available
Humor is applied in pedagogy to create a positive learning environment. Recent research focuses on the theories, effects, individual differences, and qualitative aspects of humor for instruction. However, there is a lack of studies focusing on quantitative features. Therefore, this research explored the quantitative characteristics of instructional...
Article
Digital signage in public spaces is generally silent. However, the emission of sound with the aim of generating recallability produces noise, which can be uncomfortable for passersby in the surrounding space, resulting in a loss of acoustic comfort. In this paper, we implement an On-Demand pinpoint audio system in which sound is delivered only to o...
Article
Full-text available
In food photography, factors like the camera angle, background, lighting, light color, and decorative elements are commonly manipulated to motivate consumption through the impression of deliciousness. Studies have demonstrated these factors’ relevance on several subjects related to food perception. Nevertheless, the effect that these factors might...
Article
Full-text available
How complex should the food photographs of a restaurant menu be? Studies on image complexity have been conducted using objective and subjective approaches. Nevertheless, neither approach considers the factors that photographers commonly manipulate during image creation. Therefore, this paper proposes a methodology to evaluate the impression of comp...
Chapter
Economics is going through a radical change to better account for biological and social indicators of health and prosperity, the so-called Doughnut Economics proposed by Kate Raworth. Through this framework, design understood as creating ways of being is an integral component of economic development. On the other hand, some recent studies are propo...
Conference Paper
The constant evolution of the autonomous driving systems is bringing new levels of automated driving in cars, and this progress in the upcoming years would completely change the archetype of vehicle usage experience. Since the fully automated vehicles are still in development, and are not available yet, it is relevant to understand what the expecta...
Chapter
From a young age, the affective impressions we share of others are great conditioners of our social behaviors. Affective Accuracy (AA) and Affective Synchrony (AS) are the phenomenons of accurately identifying and matching feelings with others. This paper presents the development of the Affective Impressions Scale (AIS), a dedicated tool to measure...
Article
Cooperation is motivated through internal impressions of different situations. This paper hypothesized that playing dynamic group games can lead to more positive impressions of group members and, in turn, higher levels of cooperation. A study was conducted with 42 participants, aged 7 to 12 y/o, to perform one of the following group activities: Pla...
Article
Full-text available
Scent and music are acknowledged to generate physiological and psychological changes on people, and the combination of scent and music is exerted in diverse situations. However, effects and utilization of scent and music in confined resting environment have not been examined exhaustively. To investigate the effects of scent and music on people’s mo...
Article
Full-text available
How do peoples’ educational backgrounds affect peoples’ visual estimations of the physical stability and center of mass of objects? To address this, we tested peoples’ aesthetic and stability evaluations of inclined triangular shapes among those with different educational backgrounds, specifically in engineering and art & design. The results showed...
Article
The refinement of aesthetic quality in product design and development still holds great promise with respect to user-product experience today. Among fundamental factors related to aesthetic information processing of product semantics are the product’s trendiness and other design attributes leading to individual preferences. This study aims to inves...
Book
This book gathers a selection of refereed papers presented at the 8th International Conference on Kansei Engineering and Emotion Research 2020 (KEER 2020), which was held in Tokyo, Japan, 7–9 September 2020. The contributions address the latest advances in and innovative applications of Kansei Engineering and Emotion Research and related topics. Th...
Conference Paper
The purpose of this study is to improve the comfortability of the space using digital signage and the effectiveness of the advertisement to be displayed. So we have developed a system that only reached sound information to people who need it, like people watching a screen. This system is composed of head direction and human position detected by a c...
Preprint
Cooperative behavior develops throughout childhood when conditioned to variables such as empathy and affection. In group situations, Affective Synchronization - AS happens when participants accurately identify the feelings of their group members, creating a sense of synchrony. In this paper, we hypothesized that AS is a measurable indicator of chil...
Article
Full-text available
Background: Local and organic foods have shown increased importance and market size in recent years. However, attitudes, sentiment, and habits related to such foods in the context of video social networks have not been thoroughly researched. Given that such media have become some of the most important venues of internet traffic, it is relevant to...
Preprint
BACKGROUND Local and organic foods have shown increased importance and market size in recent years. However, attitudes, sentiment, and habits related to such foods in the context of video social networks have not been thoroughly researched. Given that such media have become some of the most important venues of internet traffic, it is relevant to in...
Article
Full-text available
We administered rapid reading tasks in Japanese children (32 with typical development and 24 with developmental dyslexia), and investigated the effects of two different font types: Rounded-Gothic and Mincho style font. In the experiment, we used four kinds of stimuli: two scripts (paragraphs and random kana character non-words) in two font types (R...
Article
Full-text available
There are several issues compromising the educational role of social networks, particularly in the case of video-based online content. Among them, individual (cognitive and emotional), social (privacy and ethics) and structural (algorithmic bias) challenges can be found. To cope with such issues, we propose a recommendation system for online video...
Article
Full-text available
Food images contain several visual elements, such as lightning, color, shapes, shadows, etc. While the influence of the mentioned above have been well studied, the influence of shadows on “Deliciousness” impression of food remains unexplored. Thus, this study investigated how does the strength of the cast shadow and the angle of the light source in...
Chapter
Full-text available
How do children interact with each other and how can interactive technology contribute? In this chapter, we are going to introduce two concepts that are currently present in the development of play tools for children: (1) interactive design, represented by toys that can integrate interactive sensors and actuators to promote new play possibilities,...
Article
Full-text available
Following the previous phase of the study, we analyzed diversity of color selections, and gathered free comments of participants to explain the reason why they chose certain colors when presented with different dining situations. Furthermore, a new, simpler version of dining situation sketches was created to compare the emotions between simple and...
Article
Co-designing with children is a recent challenge to the development of new products. Children and designers can express ideas through rough drawings, also called “sketches”, but, while drawings are common activities, children can also display lack of confidence or engagement during this task. To motivate children before creating sketches, we consid...
Chapter
Design artefacts can give us several impressions when we evaluate them. How do we evaluate and judge them? Research on artworks and design artefacts has been carried out to investigate the people’s feelings during an evaluation of objects for many centuries. Research on design artefacts is getting an increase in the aspect of design development pro...
Conference Paper
Full-text available
Design is a creative activity which benefits from individual skills and cooperative efforts. Empathy, or understanding each other feelings, is considered a fundamental capacity for cooperation. When groups of children design a new product together, how cooperative do they behave, what is the role of empathy, and what are other possible predictors o...
Chapter
In this paper we present a new visual novel system “NOVELICA” which employed Japanese anime like character agent and segmented the lesson to conversation size. It is designed to make exciting pace like an entertainment content than ordinary lessons and it is easier to control progression than video learning. We compared with NOVELICA to previous vi...
Article
The theory of “cognitive dissonance” is one of the many topics related to customer satisfaction research. Some research used “free-choice paradigm” which is known to present threats to people in post-decision. However, most of the experiments focus only on theoretical frameworks, leaving aside consumer decision making. Therefore, this paper aimed t...
Conference Paper
In this paper, we present the concepts, design guidelines, and implementation details of Oz's fitting room, a novel virtual fashion fitting system where a professional stylist proposes coordination and fitting garments virtually through a display, from behind a wall or remote location with a voice changer, so that the customer has the feeling of be...
Chapter
Situation is considered as an important factor in psychological re-search, and the principle of situation research is still being established in recent years. It is important to take situations into consideration in design psychology, affective engineering and Kansei study as well. However, there are few tools and measurement methods to categorize,...
Chapter
Designed artefacts positively or negatively affect people’s feelings. Some recent research has used objective evaluation to explore their feelings by determining their physiological activities. For instance, it is well known that skin conductance responses are elicited by fear-relevant stimuli such as pictures of snakes and spiders. However, it is...
Chapter
How, from childhood, can we develop an affective and cooperative society? Based on the play value for children’s development, this research aimed to understand the sensory effects of interactive toys on three aspects of Affective Cooperation: children’s empathy disposition; displayed cooperative behavior; and perception of cooperation. To understan...
Article
Full-text available
Variety of affective states are evoked by visual art. To explore the process of feelings towards art, we studied different patterns of figures. The affection of complex pattern to feelings of goodness is still undetermined mind process. Thus, the first objective was to reveal how physical properties of complex patterns affect pattern goodness. In t...
Article
Full-text available
Currently little is known about how the color of non-edible items such as tableware affect people’s perception of food, emotional responses and mood in dining activities. The emotional responses and mood during dining activities are considered more easily affected by colors. In this study, we conducted an experiment to understand Japanese female pa...
Article
We compared motion differences of amputee soccer players and non-amputated player using motion capture system VICON. Participants were Turkey representative amputee soccer player(TUR), Japan representative amputee soccer player(JPN) and collegiate non-amputated player(COL). Participants performed short sprint, place kick and volley kick. As a resul...
Book
The proceedings gather a selection of refereed papers presented at the 7th International Conference on Kansei Engineering and Emotion Research 2018 (KEER 2018), which was held in Kuching, Malaysia from 19 to 22 March 2018. The contributions address the latest advances in and innovative applications of Kansei Engineering and Emotion Research. The s...
Chapter
Kansei is a term that represents higher brain function related to emotion, intuition, creativity, feeling, affection, and so on. This term is well accepted in Asian countries as a positive function of our mental activity guiding to a good status of mind but not has been defined as a scientific term. This chapter explains historical issues on kansei...
Conference Paper
Full-text available
Different associations are important for regulating and promoting good practices of sustainable product development. On the case of children products, there are many considerations to take, such as mental and physical development or safety. Knowing this broad challenge, how can associations better aid on the development of Design Guidelines for chi...
Conference Paper
Design education and practice have been deeply interlinked with industrialization throughout their history, but on recent years, global initiatives like the UN Sustainable Development Goals have challenged the conventional production and consumption models. Therefore, to understand the relationship between pro-environmental sentiments, attitudes an...
Conference Paper
In these days, there are many e-learning system for studying by yourself. In these systems, learner can make their own pacing in for each learning section. But many learner needs more shorter term pacing adjusted to individual motivation and feeling in one session. Many video learning system has lack of interaction. On the other hand, novel game ty...
Conference Paper
Full-text available
How, from childhood, can we start to develop a more empathetic and cooperative society? Based on the play value for children's social development, this research aims to back up the surge of `interactive playgrounds`, a proposal that combines the interactive attractiveness of modern multi-sensory technologies with traditional elements of playground...
Article
本研究の目的は13世紀における板蟇股の力学的合理性の解明を通して当時の設計者の力学的感性について考察することである。本研究では日本伝統建築において束の役割を担うために配置され構造材の役割を担う板蟇股の形態に着目した。蟇股の形態は時代や地域,作り手によって異なる設計がなされるため,建築物の建立時代を明らかにする指標の一つである。そして,中世は蟇股が構造材から装飾材の役割へと変容を遂げた変換期である。そこで本研究では,中世初期に当たる13世紀の板蟇股に掘りこまれた眼玉と呼ばれる二つの小さな凹みの意匠に着目した。13世紀に制作された板蟇股の3Dモデルを用いて木材の材料特性である直交異方性を考慮した非線形構造解析を行った。解析結果から,板蟇股に施された二つの小さな穴が応力集中緩和の傾向をもつことが示...
Article
The present study analyzed YouTube sustainable design communities (with an emphasis on Academia) in English and Spanish through webometric methods. Findings included differences between the networks in terms of speakers and popular videos. Network centralities revealed that English videos form a community with multiple interconnections between univ...
Article
Full-text available
It is widely believed that there is a relationship between scent and music. For example, there is congruence among certain scent, music, and consumers' buying behaviors according to previous study. However, only limited number of scents and music have been analyzed, which is not sufficient to conclude common characteristics of congruence between sc...
Article
Full-text available
The objective of this research is to partly clarify how Kansei works for interface users through the experimental study about effects of user's Kansei excited by color information in user interface. Firstly, we discuss how Kansei can be understood and evaluated in the field of user interface. Then an experimental study is introduced. In the experim...
Article
Due to the changes and complications of emerging society, designers are required not only to know about their design values, but also understand the link between their design and the impacts on the users. This paper aims to show a Kansei focused proposition for sustainable behaviour. By investigating the relationship between Subjective Preference (...
Conference Paper
We examined the effect of tactile stimuli for rhythm discrimination and hearing impression with ABX methods. We used semantic differential scale composed of 10 impression word pairs. We set the experiment condition with Audio (A), Audio+Vibration (AV), and Vibration (V). In the rhythm discrimination test, the hearing loss group showed better perfor...
Article
Full-text available
We conducted rapid reading tasks on Japanese children - 36 with typical development and 23 with developmental dyslexia - and investigated the effects of two different font types: Maru-Gothic and Mincho. In the experiment we used four kinds of stimuli: two scripts (text and random kana character non-words) in two font types (Maru-Gothic and Mincho)....
Article
In recent years, “Yuru-kyara” mascots, a class of mascot characters popularized by their characteristic of “yuru-sa”, have played important roles in the promotions of regional events and products. Although previous studies implicated the importance of structural and emotional factors for yuru-sa in Yuru-kyara mascots, it is unclear what factors aff...
Article
Full-text available
Olfaction-based interaction is considered as a new frontier in digital communication. There are increasing range of new products attaching scent diffusers to personal electronic devices (personal computer, smartphone, etc.). In stead of enriching the virtual reality experience, we intended to investigate the effects of scents in the experience of u...
Article
This paper presents a cross-cultural research on the perception of trustworthiness in home medical device (blood pressure monitor or BPM) in Thai and Japanese young adults. The paper focuses on the method and effectiveness of incorporating social role image into the device's design to strengthen the product image of trustworthiness among Japanese a...
Article
Full-text available
Waiting is an inevitable part of life and the spaces in which we wait can contribute to either improve or worsen the experience. This paper covers the process and results of “The waiting room”, analyzing if the presence of specific smells has a significant impact in how the room and the waiting experience are perceived. Two different odorants were...
Article
Noting the distortion as a result of the uniqueness of handwork, the purpose of this research is to investigate the effects of hand drawing as related to pattern design. The results of our preceding research showed that the difference of drawing process affected the impression of evaluation for stripe patterns. To explore further the characteristic...
Article
Full-text available
This study aims to reveal the attributes of cognitive styles of the African and the East Asian cultures toward understanding cultural basis for perceptual process of product design aesthetics. The study took a cognitivist approach following the categorization task used by Park (2011) based on Chiu's method (1972). In this study, a web-based researc...
Article
The generation gap has an effect on the sense of values and error criterion in an lighting space. We performed checking individual difference. A temporal coherence is in his 20's and his 50's, and made the generation's inequality the distinctly. I performed the valuation from the subjectivity evaluation and the object evaluation. The result was not...
Article
This study verifies the mental and physical effects of menial work and those of its implementation in virtual experience along with their relationship with the subjects' profiles. The subjects were requested to perform four tasks. We called the first task the “handmade task” and the second the “hand playing task.” As a virtual experience, we set th...
Conference Paper
This research is based on the outcome of a previous study on Wa-Gashi (a traditional Japanese sweet), its title explanation and evaluation. In this research, we focused on ‘Haru-no-yume’. From the result, in five-sixth patterns, we found that the evaluations varied as we gave more information. Furthermore, we conducted another experiment. Through a...
Conference Paper
Full-text available
Why do people tend to value an old product over a modern one? This study aims to explore cross-culturally, the conceptual basis of perceiving aesthetic values in product design characterized as being traditional and modern. To this end, a quasi-experiment was designed to evaluate the cognitive and affective richness in the aesthetic appreciation of...
Chapter
Following the current trend of modern product designs and developments, kansei and aesthetics are becoming inescapable concepts that must be considered in a user-centred design process. In this chapter, we make the assumption that aesthetic emotion is part of kansei feeling based on the cognition of sensori-emotional values evoked in interactions b...
Article
The aim of this study is to investigate the effects of context on coloring activities. Subjects and coloring tasks were selected by considering factors that affect the processing of emotional information. The results of the coloring activities were measured by setting the use of colors as an index derived from the use of contour images. In particul...
Conference Paper
Full-text available
In this paper, we discuss about the association and simultaneous evaluation between scent and product in user experience. In a preliminary step for this study, we used an online-based survey questionnaire to inquire about the user's previous experience with commonly scented products and their perceptual opinion when scent is combined with some othe...
Article
Full-text available
Most of the previous cross-cultural Kansei design research has been limited to Asia, Europe and America. However, the interaction of the product design market between Africa and Asia also deserves much attention. Having observed rich aesthetic traditions among the Asian cultures such as Japan, and also having noted aesthetics as an emotional socio-...
Conference Paper
Full-text available
本研究ではプロダクトの美的価値の持続性を増加させ、子どもの想像力を刺激するノミナルデザインに基づいた概念について考察した。子どものための家具デザ イン制作活動を事例研究とし、以下のようなプロセスを開発する。①所有感を引き出すデザインアイデンティティーである子どもの名前から、デザインコンセプ トを探求すること②「絵を描く」などの創造環境を提供し創造的行動を引き出すようなデザインサンプルを開発すること③以上のデザインプロセスを評価すること.
Article
It was impossible for hearing-impaired people to recognize common emergency information, such as the announcement or the alarm. To resolve this problem, NTT Facilities Inc. developed the emergency information system using the room lightings. This study was a basic design research aiming at development of the emergency system. We investigated the ev...
Article
In this research, we noted that fuzzy distortion is a result of the uniqueness of handwork. Initially, we attempted to analyze the effect of distorted characteristics on evaluation by conducting comparative experiments with hand drawn stripes and computer drawn stripes. Fundamentally, we were interested in understanding the contrast between prefere...
Article
Why do people want what they want? This question has fascinated researchers in design field, and continues to motivate them today. Preference has been addressed as an important theme in design whereas Preference Mechanism has not been well explained. This study shows the relationship between Preference Mechanism and product evaluation values using...
Article
The effect of package images on incidental flavor memory for fruit juice was investigated. Ninety-two participants were allocated to three experimental conditions: (1) apple-label, (2) peach-label, and (3) control-label. In each condition, participants tasted a target flavor stimulus, a 1:1 mixture of 100% pure apple juice and 100% pure peach juice...
Article
Full-text available
This kansei study explored how familiarity with image-word combinations influences affective states. Stimuli were obtained from Japanese print advertisements (ads), and consisted of images (e.g., natural-scene backgrounds) and their corresponding headlines (advertising copy). Initially, a group of subjects evaluated their level of familiarity with...
Article
Full-text available
The present study explores the effects of familiarity on affective responses (pleasure and arousal) to Japanese ad elements, based on the schema incongruity theory. Print ads showing natural scenes (landscapes) were used to create the stimuli (images and words). An empirical study was conducted to measure subjects' affective responses to image-word...
Article
Full-text available
This paper introduces a design method using psychophysiological research output as an inspiration means for the design of products taking user's Kansei highly into consideration. The development of this method is itself a part of a series of design methods based on the collaboration of the research fields of psychophysiology and design. As case stu...
Article
Along with technological development, visual design methods make designers more free to express. While visual communication design methods have been often used, visual communication design theories remain unexplored. The aims of this study was to investigate: (1) whether or not motion graphic values were interpreted by non design-experienced subjec...
Conference Paper
The aim of this research was to explore that information types make a difference in decision-making. In this experiment, two types of stimuli were used as information types: (1) car front photographs as Uninominal information stimuli (2) Car front & side pair photographs as Binominal information stimuli. Twenty university students participated in t...