To let humanoid robots behave socially adequate in a future society, we started to explore laughter as an important para-verbal signal known to influence relationships among humans rather easily. We investigated how the naturalness of various types of laughter in combination with different humanoid robots was judged, first, within a situational context that is suitable for laughter and, second, without describing the situational context. Given the variety of human laughter, do people prefer a certain style for a robot’s laughter? And (...) if yes, how does a robot’s outer appearance affect this preference, if at all? Is this preference independent of the observer’s cultural background? Those participants, who took part in two separate online surveys and were told that the robots would laugh in response to a joke, preferred one type of laughter regardless of the robot type. This result is contrasted by a detailed analysis of two more surveys, which took place during presentations at a Japanese and a German high school, respectively. From the results of these two surveys, interesting intercultural differences in the perceived naturalness of our laughing humanoids can be derived and challenging questions arise that are to be addressed in future research. (shrink)

ABSTRACT This paper explores how specific Mahāyāna ethics, namely the interpretation of the Lotus Sūtra by Zhiyi (536–597), Nichiren (1222–1282) and Sōka Gakkai (1930–), can relate to core principles of international humanitarian law (IHL). In particular, it also assesses and discusses how Sōka Gakkai’s three key doctrines (the dignity of life, the variability of life and the interconnectedness of life) are congruent with some IHL principles. The paper then analyses how Buddhist organisations today can be advocates of IHL and specifically (...) looks at how Sōka Gakkai agrees with – and commits to – IHL in terms of the humanitarian impact of the use of nuclear weapons. (shrink)

This study aimed to investigate whether the effect of mental practice can be enhanced by providing neurofeedback based on transcranial magnetic stimulation -induced motor evoked potentials. Twenty-four healthy, right-handed subjects were enrolled in this study. The subjects were randomly allocated into two groups: a group that was given correct TMS feedback and a group that was given randomized false TMS feedback. The subjects imagined pushing the switch with just timing, when the target circle overlapped a cross at the center of (...) the computer monitor. In the Real-FB group, feedback was provided to the subjects based on the MEP amplitude measured in the trial immediately preceding motor imagery. In contrast, the subjects of the Sham-FB group were provided with a feedback value that was independent of the MEP amplitude. TMS was applied when the target, moving from right to left, overlapped the cross at the center of the screen, and the MEP amplitude was measured. The MEP was recorded in the right first dorsal interosseous muscle. We evaluated the pre-mental practice and post-mental practice motor performance in both groups. As a result, a significant difference was observed in the percentage change of error values between the Real-FB group and the Sham-FB group. Furthermore, the MEP was significantly different between the groups in the 4th and 5th sets. Therefore, it was suggested that TMS-induced MEP-based neurofeedback might enhance the effect of mental practice. (shrink)

第5回東京大学南原繁記念出版賞受賞作。徳川日本の思想家らが構想した、美しく「人に接」わるための制度とその実践を鋭利に分析。思想史、文学史、文化史研究の新たな地平。.

Determinants of synesthetic color choice for the Japanese logographic script, Kanji, were studied. The study investigated how synesthetic colors for Kanji characters, which are usually acquired later in life than other types of graphemes in Japanese language , are influenced by linguistic properties such as phonology, orthography, and meaning. Of central interest was a hypothesized generalization process from synesthetic colors for graphemes, learned prior to acquisition of Kanji, to Kanji characters learned later. Results revealed that color choices for Kanji characters (...) depend on meaning and phonological information. Some results suggested that colors are generalized from Hiragana characters and Arabic digits to Kanji characters via phonology and meaning, respectively. Little influence of orthographic information was observed. The findings and approach of this study contributes to a clarification of the mechanism underlying grapheme-color synesthesia, especially in terms of its relationship to normal language processing. (shrink)

Determinants of synesthetic color choice for Japanese phonetic characters were studied in six Japanese synesthetes. The study used Hiragana and Katakana characters, which represent the same set of syllables although their visual forms are dissimilar. From a palette of 138 colors, synesthetes selected a color corresponding to each character. Results revealed that synesthetic color choices for Hiragana characters and those for their Katakana counterparts were remarkably consistent, indicating that color selection depended on character-related sounds and not visual form. This Hiragana–Katakana (...) invariance cannot be regarded as the same phenomenon as letter case invariance, usually reported for English grapheme-color synesthesia, because Hiragana and Katakana characters have different identities whereas upper and lower case letters have the same identity. This involvement of phonology suggests that cross-activation between an inducer brain region and that of the concurrent area in grapheme-color synesthesia is mediated by higher order cortical processing areas. (shrink)

In experiments of games, players frequently make choices which are regarded as irrational in game theory. In papers of Khrennikov (Information Dynamics in Cognitive, Psychological and Anomalous Phenomena. Fundamental Theories of Physics, Kluwer Academic, Norwell, 2004; Fuzzy Sets Syst. 155:4–17, 2005; Biosystems 84:225–241, 2006; Found. Phys. 35(10):1655–1693, 2005; in QP-PQ Quantum Probability and White Noise Analysis, vol. XXIV, pp. 105–117, 2009), it was pointed out that statistics collected in such the experiments have “quantum-like” properties, which can not be explained in (...) classical probability theory. In this paper, we design a simple quantum-like model describing a decision-making process in a two-players game and try to explain a mechanism of the irrational behavior of players. Finally we discuss a mathematical frame of non-Kolmogorovian system in terms of liftings (Accardi and Ohya, in Appl. Math. Optim. 39:33–59, 1999). (shrink)

The objective of this study is to design a laboratory experiment to explore the effect of ambiguity on a subject’s search behavior in a finite-horizon sequential search model. In so doing, we employ a strategy to observe the potential trend of reservation points that is usually unobserved. We observe that subjects behaving consistently across treatments reduce their reservation points in the face of ambiguity over point distribution. Our result is consistent with the theoretical implication obtained by Nishimura and Ozaki.

We discuss foundational issues of quantum information biology —one of the most successful applications of the quantum formalism outside of physics. QIB provides a multi-scale model of information processing in bio-systems: from proteins and cells to cognitive and social systems. This theory has to be sharply distinguished from “traditional quantum biophysics”. The latter is about quantum bio-physical processes, e.g., in cells or brains. QIB models the dynamics of information states of bio-systems. We argue that the information interpretation of quantum mechanics (...) is the most natural interpretation of QIB. Biologically QIB is based on two principles: adaptivity; openness. These principles are mathematically represented in the framework of a novel formalism— quantum adaptive dynamics which, in particular, contains the standard theory of open quantum systems. (shrink)

This book contains short analyses of Ogyū Sorai’s most important works, as well as a biography and a number of essays. The essays explore various aspects of his teachings, of the origins of his thought, and of the reception of his ideas in Japan, China, and Korea before and after "modernization" struck in the second half of the nineteenth century. Ogyū Sorai has come to be considered the pivotal thinker in the intellectual history of Early Modern Japan. More research has (...) been done on Sorai than on any other Confucian thinker of this period. This book disentangles the modern reception from the way in which Sorai's ideas were understood and evaluated in Japan and China in the century following his death. The joint conclusion of the research of a number of the foremost specialists in Japan, Taiwan, and the West is that Sorai was and remains an original, innovative, and important thinker, but that his position within East-Asian thought should be redefined in terms of the East-Asian tradition to which he belonged, and not in the paradigms of European History of Philosophy or Intellectual History. The book represents up-to-date scholarship and allows both the young scholar to acquaint himself with Sorai, and the intellectual historian to compare Sorai with other thinkers of other times and of other philosophical traditions. (shrink)

Credible signaling may have provided a selection pressure for producing and discriminating increasingly elaborate proto-musical signals. But, why evolve them to have hierarchical structure? We argue that the hierarchality of tonality and meter is a byproduct of domain-general mechanisms evolved for reasons other than credible signaling.

I‐J has been regarded as a polymorphic genetic marker controlled by a locus in the major histocompatibility complex (MHC) which is expressed only on functional T cells. However, this antigenic determinant has been found not to be directly encoded by the MHC gene per se but is somatically generated according to the MHC of the cellular environment during ontogeny. This explains the apparent linkage of I‐J to MHC, despite the failure to find the structural gene for I‐J within the MHC. (...) The I‐J paradox provides an instance of a polymorphism that does not follow the standard genetics of Mendelian structural genes. (shrink)

Japanese consumers are still hesitant to purchase products from Fukushima, although 7 years have passed since the Fukushima nuclear disaster and these products are officially considered safe. In this study, we examined whether Japanese consumers have negative implicit attitudes towards agricultural and aquatic products from the Fukushima region and whether these attitudes are independent of their explicit attitudes. Japanese students completed an implicit association test and a questionnaire to assess their implicit and explicit attitudes towards products from Fukushima relative to (...) another region. The results of two experiments reliably demonstrated that the public has negative implicit attitudes towards Fukushima products, whereas their explicit attitudes are consistently positive. These observations predominantly held for participants living close to Fukushima (Tokyo) as opposed to participants living far away (Hiroshima): Experiment 1 (n = 40). Furthermore, individual differences in aversion to germs contributed to the implicit attitudes; the implicit negative attitudes were attenuated among the participants with a relatively low aversion to germs: Experiment 2 (n = 60). These results suggest that the implicit attitudes associated with the behavioral immune system, which is conceptualized as a suite of psychological mechanisms designed to proactively resist pathogenic threats, may underlie the hesitation to purchase products from Fukushima. (shrink)

There exist several phenomena breaking the classical probability laws. The systems related to such phenomena are context-dependent, so that they are adaptive to other systems. In this paper, we present a new mathematical formalism to compute the joint probability distribution for two event-systems by using concepts of the adaptive dynamics and quantum information theory, e.g., quantum channels and liftings. In physics the basic example of the context-dependent phenomena is the famous double-slit experiment. Recently similar examples have been found in biological (...) and psychological sciences. Our approach is an extension of traditional quantum probability theory, and it is general enough to describe aforementioned contextual phenomena outside of quantum physics. (shrink)

This paper presents an analysis of three Japanese words — ne, yone, and daroo. These three expressions are often interpreted as tag questions in English. Although these words are semantically closely related, they are not always interchangeable. The subtle differences between them are difficult to grasp, especially for language learners. Numerous studies have been undertaken in order to clarify the meanings of ne, yone, and daroo. However, opinions vary among different scholars, and definitions for these markers are not fully established. (...) This paper applies the Natural Semantic Metalanguage approach. It proposes new explications in terms of semantic primes. The proposed semantic formulae clarify the differences between the three expressions and serve as practical tools: Tools which indicate criteria that can assist in choosing an appropriate word for a given situation. (shrink)

This paper proposes a class of independence axioms for simple acts. By introducing the E\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\mathcal {E}}$$\end{document}-cominimum independence axiom that is stronger than the comonotonic independence axiom but weaker than the independence axiom, we provide a new axiomatization theorem of simple acts within the framework of Choquet expected utility. Furthermore, in order to provide the axiomatization of simple acts, we generalize Kajii et al. into an infinite state space. Our axiomatization theorem relates (...) Choquet expected utility to multi-prior expected utility through the core of a capacity that is explicitly derived within our framework. Our result in this paper also derives Gilboa, Eichberger and Kelsey, and Rohde as a corollary. (shrink)

Plato's theory in the Republic has been a model for realist metaphysics. His text, however, is not easy to understand because his language is often only suggestive or metaphorical with the result that many different interpretations have flourished, especially in this century, and many questions have not been resolved. ;My dissertation is a new and up-to-date defense of a traditional reading of Plato's metaphysics in the Republic, focusing on three central problem areas: the degrees of reality, Plato's arguments for Forms, (...) and mathematical intermediates. ;First, Plato distinguishes knowledge and opinion, and characterizes their objects as "what is" and "what is and is not," and some scholars have taken these to represent degrees of reality. This is a fundamental distinction for Plato; however, exactly what does he mean by "what is" and "what is and is not"? I shall argue that Plato primarily means "what exists" and "what exists and does not exist ", and that the distinction amounts to degrees of reality: being and becoming. ;Second, Plato uses two arguments for the existence of Forms: the Argument from Conflicting Appearances and the One-over-Many Argument . Exactly what are these arguments, and why does Plato use two, when one argument would seem to suffice? I shall argue that the two arguments can jointly generate Forms but taken separately each generates something short of Forms. They therefore function as one argument. ;Third, scholars have disagreed over whether Plato requires a separate metaphysical category for mathematical entities when he distinguishes two stages of knowledge in the Simile of the Line--noesis and dianoia. Granted that the objects of noesis are Forms, what are the objects of dianoia? I shall argue that they must be mathematical intermediates, while discussing related issues in the interpretation of this Simile. Without mathematical intermediates we could not understand the unique position of mathematics in Plato's educational program. ;The three problem areas are closed related, and my discussions will shed light to the basic tenets and logic of Plato's metaphysics. (shrink)

I want to discuss D. Miller’s arguments concerning our responsibility to secure the basic human rights everywhere in the world. His arguments are very interesting because he tries to balance two perspectives to see human beings. First, as needy and vulnerable creatures, we need certain items or conditions in order to have minimally decent human lives. Without those items or conditions, we are harmed. Second, as choosing agents, we are responsible for the consequences of our actions. In the first half (...) of the paper, I describe Miller’s arguments. Our basic needs give rise to basic human rights. So when somebody is denied basic human rights, it imposes upon the rest of us a responsibility to restore them. This is a demand of justice. So, at first Miller appears to advocate a strong claim of our responsibility to help the global poor. But he considerably weakens this responsibility. How? First, he thinks that the deprivation of basic human rights is largely brought about by people of poor developing countries. So, we do not owe a primary responsibility to fulfil their basic human right. Second, there is a justice gap between what poor people in developing countries can claim as a matter of justice and what we are obliged, as a matter of justice, to sacrifice. So, in the end we are demanded to offer humanitarian aids only. In the second half, I develop the three problems I find with Miller’s arguments. (shrink)

法実証主義の現代的展開として法多元主義を位置づけるとともに、社会保障と自衛官合祀訴訟という個別の題材、さらに、組織論にもアプローチ。グローバル化がもたらす国家法と非国家法が交錯する世界を読み解く法理論 。.

This article analyzes investors’ portfolio selection problems in a two-period dynamic model of Knightian uncertainty. We account for the existence of portfolio inertia in this two-period framework. Furthermore, by incorporating investors’ updating behavior, we analyze how observing new information in the first period will affect investors’ behavior. By this analysis, we show that observing new information in the first period will expand portfolio inertia in the second period compared with the case in which observing new information has not been gained (...) in the first period if the degree of Knightian uncertainty is sufficiently large. (shrink)

The interdisciplinary spring school “Language, music, and cognition: Organizing events in time” was held from February 26 to March 2, 2018 at the Institute of Musicology of the University of Cologne. Language, speech, and music as events in time were explored from different perspectives including evolutionary biology, social cognition, developmental psychology, cognitive neuroscience of speech, language, and communication, as well as computational and biological approaches to language and music. There were 10 lectures, 4 workshops, and 1 student poster session. Overall, (...) the spring school investigated language and music as neurocognitive systems and focused on a mechanistic approach exploring the neural substrates underlying musical, linguistic, social, and emotional processes and behaviors. In particular, researchers approached questions concerning cognitive processes, computational procedures, and neural mechanisms underlying the temporal organization of language and music, mainly from two perspectives: one was concerned with syntax or structural representations of language and music as neurocognitive systems (i.e., an intrapersonal perspective), while the other emphasized social interaction and emotions in their communicative function (i.e., an interpersonal perspective). The spring school not only acted as a platform for knowledge transfer and exchange but also generated a number of important research questions as challenges for future investigations. (shrink)

Many people experience feelings of inferiority in their life. The concept of striving to avoid inferiority is a belief associated with the unwanted fear of being overlooked, missing out on opportunities for advancement, and active rejection. This study examined the effect of striving to avoid inferiority on mental health and well-being. We hypothesized that striving to avoid inferiority would modify the relationship among socioeconomic status, mental health, and well-being, therefore examined the effect of striving to avoid inferiority on the relationship (...) between annual income, mental health, and well-being. The participants were 491 adults. The results indicated that insecure striving in competition with others positively correlated with depression, anxiety, and stress, whereas secure non-striving in acceptance of inferiority positively correlated with the satisfaction with life and negatively correlated with depression. The effect of striving to avoid inferiority on the relationship among annual income, mental health, and well-being indicated that SNS affected the relationships between annual income and well-being, annual income and depression, income and anxiety, and the interaction between IS and SNS. Moreover, the relationship between income and stress was influenced by SNS and the interaction between IS and SNS. These results indicated that SNS or the interaction between IS and SNS were the only variables regulating the relationship among annual income, mental health, and well-being. These findings suggested that accepting feelings of inferiority or striving to avoid inferiority influences the mental health and well-being of people. (shrink)